Technologi Computer

Instrument's Music

2010-04-07T21:28:00.000-07:00

Michael Jackson

2010-01-26T17:07:00.000-08:00

Michael Jackson was already dead, leaving the controversial and the legality scandal music. After some time ago, it was said that many appear to do with the death Trojan Jacko, now security firm Sophos, which discovered the virus is transmitted from an email that contains pictures and controversial songs such legendary pop star.

E-mail originated from an ID, sarah@michaeljackson.com, with the subject "Remembering Michael Jackson", is also a ZIP file attachments bertitle "Michael's songs and pictures.zip". Email the claim that the attachment ZIP file contains the secret songs and photos Michael Jackson. Sophos then warned computer users not to open the attachment.

"By opening the attachment, the user will be infected. Once infected, the computer will automatically send the worm to other Internet users. Apart from spreading the virus via email, the malware also spreads through Autorun components via USB flash. "Revealed the Sophos.

Yahoo Messenger (YM)

2010-01-26T16:21:00.000-08:00

Yahoo Messenger (YM) has decided to dismiss IM IM client versions of Vista. However, users still can download YM Vista, which Yahoo has been working with Yahoo Messenger 10, an IM client with better multilingual support and more features. 10 version of Yahoo Messenger is still in pre-alpha version and has some differences with the Yahoo Messenger 9.

The first change is in YM is an additional 10 to have the language before signing in YM. After logging in, users will see another change in the interface of YM 9, and the option to update melohat broadcast from a friend. Users also can see a small notification on the bottom of the screen, when friends update their profiles. Users can see all the updates by clicking the Y! Updates on the main window of Yahoo Messenger. For setting up and sorting are also easier to contact in YM 10, began by name, availability, or user activity.

Yahoo also added in the YM 10, several options in the menu "Preferences", for the language of sound and video devices, and to update the settings. In addition, there is a link that allows users to manage and update the status Pingbox to broadcast profiles. YM 10 does not have many features for now, but according to Yahoo IM 10 has been tested for spywatre, malware and viruses, and the result was completely clean

2010-01-02T02:25:00.000-08:00

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Email to SMS

2009-07-05T18:53:00.000-07:00

Few people are aware of the possibility to send an Email to SMS message as it was not properly advertised so far. You can do this in two ways: either by using the services provided by your cell phone carrier (if possible) or by using special services available online. They will facilitate this task and you can easily send any Email to SMS. We are basically talking about a service that is intelligent and automated and will forward pieces of electronic information from any email account to a SMS enabled mobile device.

We are in need of a service that is powered by a wireless information server engine in most cases. A good Email to SMS service is one that is capable of analyzing millions of messages and then utilizes an intelligence engine to route them to the mobile device that the account owner will specify. When you are looking for a service that allows http://www.textmagic.co.uk/">Email SMS transfers you will see that a lot of possible servers are available, based on the service used. You should at least be allowed to access a server that utilizes POP and SMTP and maybe add a good and free web email client. Protection against SPAM is always a good added plus because we are living in a world that is highly centered round SPAM, especially when talking about email. Extra features must also focus on the analysis of email and the actual forwarding system while web 2 SMS standards must be respected together with the presence of scheduling and calendaring, which can be very useful if you are planning to send many Emails to SMS.

There are different web sites on the Internet that allow you to send Emails to SMS and all of them try to offer various advantages to users. There are even some that are free although we do recommend the paid services due to the simple reason that they are a whole lot better. Security is also a lot better and you do want your personal data to be safe at all times no matter what you are doing. Email to SMS account setup usually takes around 5 minutes and then you will get the option of paying or there will be a lack of payment, all based on the type of web site you are going to use. All you have to do now is to research some web sites and sign up to the ones that will suit your needs.

Charge for long life of laptops

2009-07-05T18:51:00.000-07:00

Laptop power adapter co. UK is a committed business house to offer their wide range of clientele superior quality products guaranteed to perform and all their products are backed by efficient after sales services in the United Kingdom. Their dedicate sales and marketing team is always eager to serve you better with the perfect answers and solutions to all your quarries. Just let them know your requirement for the adapter and they would do the rest. Their aim is to provide the best quality adapter for your laptop at the most affordable price and they assure the delivery within London almost immediately or at the same day to maintain the continuity of your work on the laptop. They offer various brands of laptop adapters under one roof and it would be very easy for them to find the right laptop adaptor for you by letting them know the brand and serial number of your laptop and consider you have found your http://www.laptop-power-adapter.co.uk/">laptop charger. It happens so frequently that you tend to miss or misplace your charger and when it comes to recharge your laptop, you find it very difficult to get the same adaptor. You cannot borrow it from another person as it may not be of the same brand or serial number like your laptop. The easiest way to find the exact replacement to contact laptop power adapter and let them to deliver your required adapter at your door step within the shortest span of the time at the most affordable charges and save your time to go places to find the right adapter for your laptop. If you cannot reach to their showroom, there is a facility offered to order through their online website updated with all the details of various types and models of adapters suitable for your laptop. The secret of their cheapest price tag is they buy in bulk to get the cheapest deal and their aim is to offer the best service at a very negligible price so that instead of buying one, you can opt for buying more than your requirement so as to find it easy if you happen to lose one.
They always insist of purchasing their adapters from the best and renowned suppliers or manufacturers directly so as to avoid any malfunction into the manufacturing and they get the finest goods at the best prices to maintain their reputable clientele. They claim that no other supplier can provide cheaper adapter than them with the performance guarantee in the United Kingdom. To ease your purchase, they accept all types of credit cards and currencies mainly in great British pound and euro.

best quality printing

2009-06-24T00:48:00.000-07:00

http://www.internet-ink.co.uk/">Toner cartridges are a special type of ink used by copy machines and laser printers. Toner consists of a dry, powdery substance that is electrically charged so that it adheres to a drum, plate, or piece of paper charged with the opposite polarity. For most laser printers, the toner comes in a cartridge that we insert into the printer. When the cartridge is empty, we can replace it or have it refilled. Typically, one can print thousands of pages with a single cartridge. Moreover, the toner printer cartridge is one of the most vital components of any office. These are often office supply products that are overlooked, but when the office runs out and all print jobs stop, the backlog can be enormous. Keeping a good supply of these toner cartridges on hand is a smart idea.

Basic features of Laser cartridges:
" It is basically a focused beam of light, which can manage to create pictures or text written in ink.
" The main principle that dictates the working of a laser printer is static electricity
" The laser printer makes use of this occurrence as a temporary glue of sorts. The most important part of the laser printer without which it cannot function is something known as the photoreceptor.
" The basic parts that a laser printer consists of are a toner hopper, corona wire, discharge lamp, laser scanning unit, fuser, developer roller and a photoreceptor drum assembly. Each of these parts has a very important role to play in the printing process.

Is Laser and Photocopier are alike?

The basic principles that guide the functioning of a laser printer and a photocopier are very much alike, except for a few important differences. For example, both the photocopier and laser printer makes use of drums, static electricity, toner etc to get the printing work done. There are many differences; however one of the main differences between a laser printer and a photocopier is the source from where the image or text is received.
Photocopier and Laser printer has made our life more comfortable. Now instead of doing the work by hand we can do our work in a simple click of a button.

Benefits of Laser cartridges:
" The laser printer is capable of writing out pages at a much faster speed when compared to an ink jet printer because a laser printer moves very quickly.
" Another advantage with laser printers is that their laser beam comes with an unvarying diameter. With this the laser printer can draw much more accurately without wasting any extra ink.
" Though they cost more, laser printers do not cost that much to keep them running. With laser printers the toner powder will cost you less and once you purchase it the powder will last you a very long time
" Laser printers are affordable but with technical development the rates will come down without hampering its value or quality.

As there are various cartridges in the market today cheaper than laser but because of the above mentioned benefits laser cartridges still one step ahead than the others. Thus, quality always rules when good work come into focus. Therefore we can avail best quality printing with Laser cartridges

unique website for your business

2009-06-24T00:45:00.000-07:00

Brad Callen is a highly reputed and trusted in the field of specialized website designing with the innovative technological tools, software and their professional application to make any website well organized, unique and attractive. Their large range of clientele nationwide and overseas is the sound proof of their competitive business and cost effective supreme quality services. They always justify their web related projects with the perfect solutions. Their wide range of services include professional web designing and development, designing corporate logo, web templates, flash animation, strategies for online advertisements, content management system, promotion of website inputting the banners, e-commerce solutions and many more to enlist. Their basic objective is to provide complete satisfaction to their client with paying the personalized attention and to understand their requirements by the best possible way. The reason behind their growing popularity is their uncompromised business attitude. Apart from offering the most comprehensive services to their reputed clientele, their approach also remains exclusive and distinguished in comparison with many other competitors into their field. Their expert and professionally competent team of engineers are just eager to achieve any goal with the positive attitude without any compromise. They claim to combine strategic planning and business aptitude in the application and development of a website. As an organized service provider, first of all they collect all the significant information about your business to understand your business better and then execute the project. They put their best efforts to promote your brand name, logo design, products and services by offering the perfect solutions for its maintenance. They undertake all the applications to boost your business into the market to obtain the best possible results.
The designing and development of website consists of flash websites, flash intros, animated and static banners and many novel inventions and applicable technologies. They really assist in understanding the important principles and skills required to create an ideal website though it is not possible to document each and every aspect you wish to add in. They plan http://www.bradcallen.com">internet marketing strategies in order to make more money online. They monitor each step of the task precisely, communicating with the clientele for the better ideas and care to see that their creations correspond well with your business. They are always eager to sort out any issues regarding the web development and provide the best solutions without affecting your business strategies. All their projects are assured of best technological support and solutions. They combine content management system, e-commerce at its best and develop an ideal website for their clientele. They always try to put their best efforts in providing the best possible appearance to our website on the search engine optimizations. It is always preferred to approach the market leader who is offering the best results of your investments. They provide personalized attention to all the requirements of the business to project the uniqueness and a perfect completion. All their projects are assured of best technological support and solutions.

Are You Losing Your Virtual Memory?

2009-06-24T00:19:00.000-07:00

The average computer sold on the market today is either 128 or 256 megabytes of ram. Unfortunately, that isn't enough to do basic task on the computer without using it up. To compensate for the lack of ram your computer gets extra ram from free areas of your hard disk. This ensures that you have enough ram to do things such as run multiple programs at once. You can see that the more computers advance, the disk space is what's being multiplied and not the megabytes of ram This is by far the most effective and economical approach to take in order to have more ram. When your compare the cost of ram to the cost of hard disk you can get a better understanding of this. I located a seller offering a Dell Dimension 2350 512 megabytes of ram for $34.99 while EBay had a listing for a Seagate 320GB SATA Hard Disk Drive at the same price. Clearly the 320 gigabytes outweighs the 512 megabytes which can both be used for ram.

Virtual Memory Freeware Tools

Most virtual memory applications usually try to increase your computers' physical memory which you will use for ram. This option is great if you need to free up just enough space to get things done. The freeware tools are also known as the RAM defragmenters. Their job is to free the portions of the RAM which are simply wasted and are remaining in the computer as useless space. When there is no more free memory space available with the RAM, the Windows crashes take place. These tools often stop these from occurring so that the memory space is increased significantly. You can get the licensed versions of these freeware tools for a few dollars more. Some of the websites allow you to download the trial versions of this software for free which you can try out for a certain period and check the utility. This is a cheaper option to take if you don't want to spend more money for ram or a disk drive.

How does the virtual memory work?

As you all know that the virtual memory of a computer is a common section of the desktop as well as the operating system. A 128 or 256 MB RAM can never be space enough for simultaneously loaded applications like Email programs, two operating systems like Linux and Microsoft windows and word processors. When the Ram is absolutely stuffed with all these programs, it will show a message stating the unavailability of adequate memory.

But it is the virtual memory that comes into the picture in these situations. The virtual memory helps the unused parts of the RAM to get copied at the hard disk so that they can become available. This takes place automatically without even letting you know. Still sometimes you might have seen a small window popping up to say that the virtual memory is low. This is when there is no more space left to be used in the RAM.

Upgrading the hard disk has proven to be a better way to increase the virtual memory of a computer. Hence, now onwards when you visit an electronics shop in search of high capacity computers, check out the hard disk space apart from the Ram and also look for provisions to increase the space.

Apple and Mac

2009-06-23T02:09:00.001-07:00

Are you wondering what brand of computer to get? Why not try getting that one with an apple on. I’m sure that all of us have seen that apple logo with a bite of its upper right side and I’m also sure that all of us know who it belongs to. That famous apple is the logo of none other than Apple, Inc. This company is well known for its Macintosh personal computers, the iPod and the much talked about iPhone.

Macintosh, or popularly called as Mac, is a brand name for a group of personal computers produced by Apple, Inc. This also refers to the operating system used by these computers. Apple first introduced Macintosh computers in 1984 but suffered a decline when a cheaper and more efficient Microsoft Windows was introduced in the 1990’s. Since then more people started using Windows instead of Mac. But Apple fought back with the introduction of the iMac in 1998 and started to rise again soon after that. Today, Mac is still widely used by a great majority of people around the world and has given Windows a run for its money.

Apple has produced both desktop and laptops computers. Unlike the Windows operating system which can be used for any computer brand, the Mac operating system is only used with Apple computers. They have produced desktops computers with some of more common and latest models being the Mac Pro, iMac and Mac mini. They have also produced the MacBook Pro, http://www.cheapshoppingcenter.com/shop/Computers-and-Networking/Apple-Macintosh-Computers">Powerbook Laptops and MacBook air for their portable computers.

The Mac Pro introduced in 2006 is a workstation desktop computer which uses Intel Xeon processors. The iMac introduced also in 2006 is a high-end desktop computer which is the first Macintosh with an Intel Core 2 Duo processor. The Mac mini introduced in 2005 is the smallest desktop computer to be released by Apple. This computer looks like a small box with a measurement of 6.5 by 6.5 by 2 inches. This also uses an Intel Core Solo or Intel Core Duo processor.

The MacBook Pro first introduced in 2006, is a 15 inch notebook pc with an aluminum casing. It uses Intel Core 2 Duo processors and has 4 GB of RAM. The MacBook also introduced

in 2006 is a 13.3 inch notebook computer with a polycarbonate casing. It also uses Intel Core 2 Duo processors and has up to 4 GB of RAM. The MacBook Air introduced early this year is a 13.3 inch notebook computer which weighs only 1.36 kg and is 0.16 inches thick. This uses Intel Core 2 Duo processors and 2 GB of RAM.

Aside from these computers, Apple has also produced the iPod which is a digital media player and the iPhone which is a phone, an iPod and an internet device in one. The computers have the usual accessories but both the iPod and iPhone has accessories too. These accessories can serve to protect your iPod or iPod and enhance them too.

If you don’t have an Apple computer yet and would like to try one after what you have read, why not open an internet window and type in http://www.cheapshoppingcenter.com">www.cheapshoppingcenter.com into your address bar now and check out Apple computers, components and accessories at the lowest prices. You can look for Apple computers; compare their specifications and their prices to get the most value for your money. Not only that, while on Cheap Shopping Center also take a look at other http://www.cheapshoppingcenter.com/shop/Computers-and-Networking/Monitors-and-Projectors">computer products. You might find something you like or need and you can get them at this site for the best prices.

Dual-Core and Multi-Core Processors

2009-06-23T02:08:00.001-07:00

Dual-core refers to a CPU that includes two complete execution cores per physical processor. It combines two processors and their caches and cache controllers onto a single integrated circuit. Dual processor systems are those that contain two separate physical computer processors, Dual-Core and Multi-Core, residing alongside on the same chassis. An integrated circuit containing two complete computer processors are fitted in a dual-core configuration. Usually, the two identical processors are manufactured so they reside alongside, each with its own path to the system front side bus. Multi-core is to some degree an extension to dual-core technology and allows for more than two split processors. Multi-processor system, unlike a dual-core processor, includes two separate CPUs with their own resources. On the other side, resources are shared and the cores reside on the same chip in a dual-core processor.

The commands in a single-core or usual processor the CPU are arrayed, executed and then selectively stored in cache for fast recovery. Random access memory (RAM) facilitates in retrieval of data outside the cache through the system bus, if needed. Accessing these sluggish performances to the maximum speed the bus, which RAM allows is a far slower speed than of the CPU. The situation is compounded with multi-tasking.

Hyper-Threading is a technology that enables running multiple demanding applications at the same time. Intel has put Hyper-threading technology into operation. It is no multithreading. As a substitute it is a technology implanted within a single core processor which appears as of multiple processors.

A dual-core processor has loads of advantages especially for multitasking computing power. Two complete execution cores are provided by the Dual-core processors, as an alternative of one. Each core is linked with an autonomous interface to the front bus. The operating system has sufficient resources to handle intensive tasks in parallel because each core has its own cache. It helps in providing a noticeable improvement to multitasking. Each processor can handle a separate stream of data. This greatly increases the performance of a system that is running parallel applications such as a server. Dual-core processors require both the operating system and the application running on the computer to support thread-level parallelism technology to attain a complete optimized performance.

The common drift in processor development has been from multi-core to more-core. Multithreading and memory on chip supports in an enhanced performance, chiefly in processing multimedia, recognition and networking applications. Enhancement in efficient energy usage has been the main inclination in technology. The performance per watt is sustained by the ultra fine power management, dynamic voltage and periodic frequency scaling. It is a general conscious that the faster the processor, the higher is the clock speed. Dual-core processors made the topic complex. Since the dual-core processors are being developed to shape in the same dimensions as of a single core processor, speeds are not hence equivalent.

Convert Your PDF Files to Microsoft Word

2009-06-19T21:09:00.000-07:00

Because of the high price of Adobe Acrobat (the complete PDF solution), most of our individuals only feel powerless and frustrated when we want to reuse a PDF file, like copying pages from them.
In fact, besides Acrobat, there are dozens of PDF tools available on download.com and by searching on Google for converting or editing PDF files. They are much less expensive than Adobe Acrobat, moreover, many of them are free like PDF to Word Converter, PDF Hammer
Before you choose a PDF tool for reusing PDF files, you need to make sure which type your PDF file is. After you figure out the two kinds of PDF format, vector and raster, things become easier. Vector PDF files can be converted to editable word documents and other MS Office files. To judge if a PDF file is vector, just open it in the Adobe Reader and magnify it more than 800%. If the details in the drawing look sharp, it is a vector PDF and if the zooming results are in jagged or grainy details it is a raster or bitmap. (usually created from images or scan copies).
The most common way to reuse PDF files is converting them to MS Word for editing and quoting. You may want to copy some interesting paragraphs or elegant sentences from PDF files. Furthermore, you may receive business or financial charts in the PDF format and would like to use them in your document or presentation. Do not fancy that you can copy and paste the text from PDFs, most magazines and copyright protected PDF files do not allow copying. PDF to Word converters can help you extract the editable objects and text from PDF files, so that you can edit charts in Word or Visio and make changes to color, shape, line weight and so on. Following 4 ways shows what kind of tools you should choose for reusing vector PDF files. The raster and bitmap are limited.
1.Nitro PDF to Word Converter is a good choice. It is a FREE online PDF to Word converter, which is no add-ons and no installation. However, it is still a BETA version and only the files smaller than 10MB can be converted. You need some tools which need to pay if you want to convert larger PDF files. Get the balance between price and quality in choosing PDF to word converter.
For more info, please visit the URL: http://www.pdftoword.com/
2.PDF to Word converter is an affordable tool that can convert large size PDF files. Although the quality of this tool may not the best, it has a charming price of $ 29.
For more info, visit the URL http://www.allpdftools.com/pdf-to-word-converter.html
3.Solid PDF to Word Converter is the most powerful PDF to Word tool Ive ever tried. It converts not only PDF files to Word docs, but also other files to PDFs. Moreover, it allows you to edit PDF files directly and save them as new copies. But the conversion rate is very slow.
For more info, please visit the URL: http://www.soliddocuments.com/
4.Investintech Able2doc. The conversion quality is good and cosnversion speed is acceptable. But the trial notification is annoying and the user interface is not well designed.
For more info, please visit the URL: http://www.investintech.com/prod_a2d.htm
And more
Knowing what kind of PDF file it is, vector or raster, is the key thing. Then for the vector PDF files, you can not only convert them to word, text and images but also excel, RTF, HTML, TIF and so on.

5 ways to ignite your PC's performance without spending a cent

2009-06-19T21:08:00.000-07:00

Is your PC slowing down? Or maybe it crashing more and more, Well if that's the case it just might because your PC is suffering old age! Yes that's right just like people PCs suffer from the aging process too.

But there's good news

But unlike people you can actually turn back the aging process and bring your beloved PC back to life. All it takes is a couple of easy to follow tips to ignite your PC's performance to full speed again.

Just follow these easy to follow steps:

System configuration utility
Even when your computer's sat there doing nothing it could be running at least 50 programs! These are programs that a munching away at your poor old CPU and not to mention having a right good go at your memory as well. The reason for this is because over time the more stuff you install the more crap that builds up and even if you don't even use that program, there's a damn good chance that it's running in the background.

To see what I mean hit CTRL +ALT + DELETE then press the processes tab. It will show you how many processes that are running in the background.

1. To solve this little dilemma just go the Start or Run for XP owners, and type MSCONFIG.

2. The System configuration will appear and from in there go to the STARTUP tab.

3. Once you've selected the STARTUP tab you'll be presented all the programs that are running in the background of your PC. What I would recommend is turning everything off apart from your anti virus.

If you do see anything what you do want on for example MSN massager by all means keep it on but the more you have running in the background the more it'll sap your PC's performance and will also affect you're your Boot times as well.

System configuration utility part 2
Now still hanging around in the System Configuration Utility, go to the second tab called SERVICES and go to and untick the HIDE ALL MICROSOFT SERVICES. We've got to do this (unless you're a bit more experienced) because if you go and turn one of Microsoft's services you could just mess your entire PC up and we don't want that do we.

Once you've unticked the box you should be just left with all the non Microsoft services.

once again I would recommend to turn them all off but the anti viruses services. Once you've decided what and what not gets the chop click apply and you're done.

Performance Options
Depending on which OS (operating system) your using, this could make or brake it. If your using Windows Vista? I would recommend turning some the visual effects of especially on the lower end systems. However if your using XP, the performance will be less impressive but I believe every ounce of performance is crucial. Besides, you won't even notice half of these switched of anyway.

Now as much as I would love to tell you how to get to these options, the ways to get there are very different when compared to Vista and XP. So a way around this (and probably a cop out as well) I'll just tell the vista owners to type in PERFORMANCE into the search bar, select PERFORMANCE INFORMATION AND TOOLS and click ADJUST VISUAL EFFECTS and you'll find your way there.

For XP owners read on:

1. Go to Start, Control Panel and select PERFORMANCE AND MAINTENANCE.

2. Then ADJUST VISUAL EFFECTS you should find yourself there.

Now I would recommend turning them all off barring the last one. The last one keeps the modern Windows feel which I personally like but hay, everyone's different.

Uninstalling
A fast Hardrive is a empty hardrive. So if you've got an hardrive full to the brim, delete the programs and games you don't need to speed up your Hardrive and watch those boot times fly!

Tip: If you're a gamer (like me) What you can do is save the save game file and uninstall the full game. This way you can get the wanted gigs of space back but not lose your place on Crysis. Cool eh.

Defragging
Now there's hundreds of other tips I wanted to share with you but I wanted to keep this article as short as possible to prevent you been bord to death. but the ver last thing I would do to my PC once I finish optimizing it is to defrag it.

Now your probably thinking that yes I already know that James. But what I would recommend doing is using a different defragger especially if your using the dreaded Vista defragged.

Now as you've probably gathered, I can't stand Vista's defragger, I think it's actually a step backwards, not a step forward. But what really annoys me about it is that you have no idea how long it will takes and how defragmented your hardrive is.

But don't worry, because I'm going to show you to download a much better one that Vista's own shoddy attempt. Auslogics Disk defragger is its name and I think you'll find it quick and easy to use and it seems to do quite a good job as well.

Boom your business through high quality website designs

2009-06-19T21:05:00.000-07:00

What do you first look at when you open a web site? How do you primarily get impressed by a web site? All these answers have a great relevance in making a web site get the maximum number of viewers. Any one who will access a web page will first get attracted towards the entire look of that web site and then consider the other factors. Keeping this essential thing in mind Glimpse Media has introduced all new range of web portal designing which delivers a outstanding look to all their cli8ents to impress them the most.

The initial key for any online business to flourish is that its web portal should be good enough to lure the customers towards itself. And what else could do the cause apart from the web site designing part. Hence, it is always advisable to choose an expert to do the relevant job. They deliver the following services to all their clients:

1 They provide affordable website design
2 They deliver best website design in terms of quality
3 They offer the best word press themes
4 They even render business website designs
5 They even give the custom website designs on demand

Apart from all these they take special care of the requirements of their clients. While making the web sites the demands of their customers are kept in mind and then the work is preceded par excellence. They offer a wide range of designing work such as Newsletter design, Brochure designs, http://glimpse-media.com/">best website design and many more. They provide user friendly designing templates which are easy to learn and handle.

Through their astonishing and innovative ideas they have maintained a tough stand among all their competitors. They not only do all the effort to do a striking out look of the web portal but also give it adaptable functions which makes it all the more lucrative to have. They have always set high goals to achieve which make them competitive and grow as a company in the market.

In a very short span of their experience they have worked with almost every reputed client in the industry. They provide special price packages for every genre of client from high level to small business type. Their innovative ideology and cost effective solutions make them a perfect match for any sort of business type.

Glimpse Media actually stands as a well known company in the web site development field. There are an ideal for all the new comers in this relevant field and an exception for the existing ones. Through their hard work and will power they have surely rule the market.

Programs

2009-05-15T20:04:00.000-07:00

A 1970s punched card containing one line from a FORTRAN program. The card reads: "Z(1) = Y + W(1)" and is labelled "PROJ039" for identification purposes.

In practical terms, a computer program may run from just a few instructions to many millions of instructions, as in a program for a word processor or a web browser. A typical modern computer can execute billions of instructions per second (gigahertz or GHz) and rarely make a mistake over many years of operation. Large computer programs consisting of several million instructions may take teams of programmers years to write, and due to the complexity of the task almost certainly contain errors.

Errors in computer programs are called "bugs". Bugs may be benign and not affect the usefulness of the program, or have only subtle effects. But in some cases they may cause the program to "hang"—become unresponsive to input such as mouse clicks or keystrokes, or to completely fail or "crash". Otherwise benign bugs may sometimes may be harnessed for malicious intent by an unscrupulous user writing an "exploit"—code designed to take advantage of a bug and disrupt a program's proper execution. Bugs are usually not the fault of the computer. Since computers merely execute the instructions they are given, bugs are nearly always the result of programmer error or an oversight made in the program's design.^[15]

In most computers, individual instructions are stored as machine code with each instruction being given a unique number (its operation code or opcode for short). The command to add two numbers together would have one opcode, the command to multiply them would have a different opcode and so on. The simplest computers are able to perform any of a handful of different instructions; the more complex computers have several hundred to choose from—each with a unique numerical code. Since the computer's memory is able to store numbers, it can also store the instruction codes. This leads to the important fact that entire programs (which are just lists of instructions) can be represented as lists of numbers and can themselves be manipulated inside the computer just as if they were numeric data. The fundamental concept of storing programs in the computer's memory alongside the data they operate on is the crux of the von Neumann, or stored program, architecture. In some cases, a computer might store some or all of its program in memory that is kept separate from the data it operates on. This is called the Harvard architecture after the Harvard Mark I computer. Modern von Neumann computers display some traits of the Harvard architecture in their designs, such as in CPU caches.

While it is possible to write computer programs as long lists of numbers (machine language) and this technique was used with many early computers,^[16] it is extremely tedious to do so in practice, especially for complicated programs. Instead, each basic instruction can be given a short name that is indicative of its function and easy to remember—a mnemonic such as ADD, SUB, MULT or JUMP. These mnemonics are collectively known as a computer's assembly language. Converting programs written in assembly language into something the computer can actually understand (machine language) is usually done by a computer program called an assembler. Machine languages and the assembly languages that represent them (collectively termed low-level programming languages) tend to be unique to a particular type of computer. For instance, an ARM architecture computer (such as may be found in a PDA or a hand-held videogame) cannot understand the machine language of an Intel Pentium or the AMD Athlon 64 computer that might be in a PC.^[17]

Though considerably easier than in machine language, writing long programs in assembly language is often difficult and error prone. Therefore, most complicated programs are written in more abstract high-level programming languages that are able to express the needs of the computer programmer more conveniently (and thereby help reduce programmer error). High level languages are usually "compiled" into machine language (or sometimes into assembly language and then into machine language) using another computer program called a compiler.^[18] Since high level languages are more abstract than assembly language, it is possible to use different compilers to translate the same high level language program into the machine language of many different types of computer. This is part of the means by which software like video games may be made available for different computer architectures such as personal computers and various video game consoles.

The task of developing large software systems presents a significant intellectual challenge. Producing software with an acceptably high reliability within a predictable schedule and budget has historically been difficult; the academic and professional discipline of software engineering concentrates specifically on this problem.

Acer Laptop

2009-05-05T23:12:00.000-07:00

When Acer laptop computers first appeared onto the UK laptop scene, people tended to turn up their nose at the name (it was not a known brand) and because Acer laptop computers were significantly cheaper than many of their rivals, the assumption was made, quite wrongly, that cheaper laptops meant shoddy laptops.

Over the years people who have tried Acer laptop products have discovered that a cheap Acer laptop computer means a laptop that costs less but does not provide a sub standard set of components.

The Acer company goal is to provide people with an easy to use laptop, which is dependable and satisfies customer requirements and was, obviously, affordable. This ethos has turned Acer laptops from being "Oh dear, you own an Acer" to becoming one of the top five PC vendors in the world and in 2008 became world's No.1 for their notebook computers. Laptop snobs should beware of turning their noses up at Acer laptops nowadays, they may, very well, be missing something.

The Acer Aspire laptop 5735 has Acer Cine Crystal which means you get to near cinema quality viewing on the High Definition TFT LCD 15.6" screen and with its stereo speakers you can look forward to unbelievable sound quality, too. The 2.0 GHz Intel Core Duo processors makes downloading quicker and completing tasks becomes a piece of cake. With 4GB of RAM and 250 GB Hard drive storage, you are not going to run out of space any time soon. The Aspire laptop is wireless enabled, so, you are ready to surf the web and its 5-in-1 card reader makes file sharing easy peasy, too. The Acer Aspire 5735, a What Laptop Gold Award winning laptop computer for 2009, comes with Microsoft Vista Home Premium operating system and is an excellent multimedia laptop for home use.

Pyramid.com like to think they know a bit about laptop computers and can readily tell the difference between an inexpensive laptop computer and a cheap laptop computer. Pyramid.com stock and supply Acer laptop computers for home, school or business use, which would allow you to benefit from all the latest laptop technology at a fraction of the price.

Article Source: http://www.ArticleBlast.com

Tips When Getting Affordable Web Hosting

2009-05-03T21:09:00.000-07:00

Web hosting is an essential aspect in running an online business. Since you would need a fully functional website, which you can use as your online shop, you will also consequently require the right web host. If you think that web hosting services need to be expensive, think again. Almost everyone is now able to get affordable web hosting services from the right providers.

However, not every cheap hosting company is worthy of your trust and your money, so you still need to find the right company for you. There are also hosting reviews found on the web that can help you refine your search further. Getting the hosting service perfect for your budget is important, but there are a few things you need to remember if you plan on getting the cheaper types of hosting.

When settling for affordable web hosting, you should not compromise on reliability. You may opt for the cheapest service there is, and consequently save on costs big time, but if you don't have a reliable provider, the losses incurred by your web business could be devastating. You would not want a web host who opts to stay invisible, especially during downtimes. If you can find a cheap web host who can guarantee fast and efficient reliability 24/7, then you know you have worth keeping.

Along with reliability, your affordable web host needs to be able to provide excellent technical support tools. They should have a stand-by help desk support system, which is prepared to assist the clients anytime needed. When choosing affordable web hosting, you should go for a hosting provider who can answer your verifications truthfully and thoroughly.

There are cheap web hosts that offer substandard services in exchange for very low monthly rates. You need to avoid these so-called providers. One of the more important things to establish when choosing a web host is the uptime guarantee provided. If the inexpensive web hosting solution does not provide an uptime guarantee of 99%, it's best to look elsewhere. Surely, you would not want your website to be inaccessible to millions of potential site visitors worldwide.

If the web hosting company has been in the business for a long time, you can be assured that they are doing their job well. However, you also need to look into the background of any hosting provider before making any choice. If you can solicit reviews and comments from people in the web hosting industry, this can be extremely helpful.

Since you are searching for affordable web hosting, make sure that the fees being offered are definitely affordable. The fees can go to as low as $1 and as high as $10, but not higher. You can determine the fees you are most comfortable with after considering your budget and the requirements of your website. Getting cheap web hosting will allow you to limit your expenses as you are growing your online business.

Article Source: http://www.ArticleBlast.com

Disk Boot Error

2009-04-28T22:20:00.000-07:00

Hard disk failure is common, especially in new hard drives with high read/write speed. Their rotating speed is increasing by leaps and bounds. But as its adverse effect, it generates immense centrifugal force and fails the hard drive. This fact together with that hard disk is comprised of moving components is the major reason why disk failure cases occur. As the solution, you may require Hard Disk Recovery service (when data backup is unavailable, not updated or corrupt). It is a manual help to recover lost data from physically crashed hard drives.

A failed hard disk exhibits boot-failure errors. You may get a similar error message while starting the system:

"Disk Boot Error, Replace and Strike Key to Retry"

Such hard disks spin, but are not recognized by computer BIOS. The error message shows that hard disk is suffering from physical issues. However, you may also check following:

Computer system sometimes tries to boot the system from other inserted disks. So make sure, there no such disk in the system.

Check for BIOS setup. Ensure that hard disk settings are correct and it is enabled. Also, verify the correct boot order.

Verify if primary partition is active

Ensure that the ribbon cable and hard disk power connector are properly connected

Check if all device drivers are installed

If above verifications don't solve the issue, you need to immediately power down the system. The hard disk is required to be sent for hard drive recovery software service to recover lost data. It is suggested to consult the data recovery company about how to pack the physically failed hard drive.

Disk recovery experts encompass all sorts of recovery procedures, which are highly technical and advanced. As per the cause of failure, they can displace the platters, repair or replace failed components, make images of hard disk etc. Special Clean Rooms surroundings are used to perform all such tasks.

The initial attempt of hard drive recovery has the maximum possibility to have data recovered. The chances go down after each unsuccessful attempt. So, you require getting one-hit solution in terms of a data recovery company. See for the records and company's certification.

Stellar Information Systems Limited offers confidential and safe recovery service through Class 100 Clean Rooms. It is an ISO 9001:2000 certified company with a golden record of solving data loss cases. The company leads market with its superior quality set of tools and techniques. Its service solutions are available for all types of hard drives, including SCSI, SATA, IDE and EIDE.
http://www.ArticleBlast.com

SEO to Get High Conversion Rate

2009-04-28T22:17:00.000-07:00

Anyone who builds a website definitely wants the search engines to notice it and even index it as one of the top websites. It is chiefly depends on what the website is all about and what sort of keywords they could be targeting so that they may get expected traffic. But the major issue with our websites is that there are plenty of flash images, pictures, adverts, links, in short, they are several new and good looking things that are brought to the face of the customers. This is major mistake that many developers overlook. They are just out to eat your money and you wonder why your website is not getting any traffic.

If there is one thing I would not like you to forget as you read this is: ‘whenever anyone is using the search engines, they are mainly searching for information'. This is something you should never forget. If you have a website having flowers and gifts advertising but you are dealing in food services, then users will not visit your website again.

This is where expert SEO services come in. SEO, search engine optimization, which in simple terms means trying to maximize your website to be indexed highly by search engines in such a way that when certain keywords are used, your website will be among the top results. SEO services include keyword analysis, creating high value links, writing Meta descriptions, content writing, article submission, and generating tags for your web pages. The SEO writers and service providers have given their time to study how search engine robots work and with that can help your website be identified as among top results using certain keywords.

So how SEO services are helpful? Below example will illustrate this better.

Let say your website is among the top in the search engine results using a certain keyword that attracts, say a million people. If 10 percent of them click on your website, you will have 100,000 visitors. If 10% of them buy your product at an average of $1 you will get $10,000 in one day. It's as easy as that. The tough part is always getting to the top and this is where SEO services get involved.

Arrow, a renowned internet marketing firm in Australia, offering cutting edge SEO services to make your website search engine friendly and optimize your site in order to get top rankings and generate traffic and leads. If you are looking for reliable and cost effective SEO services, Arrow is right choice for you.

http://www.ArticleBlast.com

Upgrading Your Mac

2009-04-28T22:13:00.001-07:00

If you own a Mac and if you have been using it for a significant period, you would have surely thought of upgrading it or accessorizing it at one time or another. Here are some of the most talked about Mac Accessories you can use to garnish your system. Available as the ‘minixpress 825,’ the ‘minixpress 825S,’ and the ‘minixpress 425S,’ the minixpress portable FireWire Hard Disk Drives are highly reliable and come with shock protection, also comprising blazing SATA transfer speed. They also boast of multiple connectivity options. The minixpress 825 comes with a performance of 80 MB/sec, while the 825S and the 425S versions come with a performance of up to 150 MB/sec. The drives use the latest Oxford 934DS hot pluggable and bus powered technology to plug or unplug without restarting or turning off the computer. Also a very handy Mac accessory is RAID Solutions’ ‘Pro Caddy2.’ The Pro Caddy2 is available for Apple Mac Pro and is an internal optical bay hard disk drive mounting solution. The catch is that once installed, the Pro Caddy2 allows you to use two additional hard drives, thus increasing productivity and efficiency. With a notable capacity of up to 24 TB, these Ultra-320 SCSI devices can handle a flexible range of applications. The quickest and the best way of making your Mac run faster is by adding memory! Apple Memory upgrades compatible with all Mac machines are obtainable. An apple memory upgrade is obtainable for your MacBook or MacBook Pro, iMac Intel Core Duo, Mac Pro, Mac Mini and the Powerbook G4. Last, but by no means the least, also on the radar is RAM for 8-Core Mac Pro. It fully complies with Apple and Intel standards. 8-core Mac Pro offers eight slots for memory, supporting up to 32GB. DDR3 1066MHz ECC SDRAM is advanced and reliable memory equipment. To conclude, when it comes to upgrading and refurbishing your Mac, these accessories certainly are the easiest way out.

Article Source: http://www.ArticleBlast.com

Compare Laptop Price

2009-04-28T20:37:00.000-07:00

Compare Laptops tool to select a laptop that meets all your needs

Buying a laptop is
not a guessing game and with so many laptops in the market. Most often, it becomes
very difficult for you to make up your mind on what to buy. Every laptop manufacturer
today has at least a minimum of 10-25 notebook models to offer, and even if you have
the basic idea of what you want, it becomes hard to narrow down to your perfect choice.
Today laptops are not just machines that provide mobile computing. Rather they have evolved
into tools of digital lifestyle. Today a laptop is used for computing, entertainment,
mobile internet, video conferencing, gaming and much more. But not all laptops have all
the functionalities, and each functionality adds to the cost. So how should you systematically go
about selecting a laptop that meets your needs and comes at the affordable price?

One feature that
is effectively used by comparison websites is Compare Laptop tool. This tool allows you to compare
various models on price and features across brands and also different models of the same brand.
The common mistake committed by most of the first time buyers of laptop is that they tend to compare
only prices of laptops without looking at the features and configuration of the laptops, and therefore
buying decision reached is never right. It is like comparing Maruti 800 with Mercedes Benz C220, and if price is the only consideration then nobody would ever
buy Mercedes Benz C220. Compare Laptop tool not only allows you to compare prices of different laptops , but it offers comparison based on features and specifications like Processor, Ram, Hard Drive, Optical Disc Drive and so on. Basically Compare Laptop tool allows you to do like- to- like comparison to arrive at the right buying decision.

A simple three step process will help you select right laptop or any other technology gadget:

1.Decide what you need laptop for. For instance, do you need it for basic computing, or running high end applications, or graphic work, or gaming or entertainment? For example a HP pavilion laptop offers more multimedia capabilities when compared to a Dell Studio laptop, but at the same time a Dell Studio is much more suited for heavy computing as compared to HP pavilion notebooks.

2.After you’ve decided on the use, shortlist models using Compare Laptop tool that meet your criteria with respect to features, components and overall specifications.

3.Finally compare price of shortlisted models and further narrow down your choice to one to three models that are lowest priced.

Having said that, comparison tool as used in most the comparison websites today has its own limitations and it becomes difficult to narrow down your choices beyond a point. www.consumermate.com takes this concept a step further and tries to address some of these anomalies. Consumermate allows you to shortlist models based on brand, screen-size, weight, and price before you do comparison on components & features. This allows you to specify your basic requirements before you go to detailed specification sheet. The buying decision is much more simple, accurate and precise this way.

Besides, Consumermate has a user friendly feature of Laptop Guru that through set of simple questions guides a lay-man to ascertain his exact requirements and select appropriate models. This is a very handy tool if you are unable to define your requirements, which is the case most often. In addition, Consumermate has features like Expert Ratings & reviews and user reviews that help you further refine your search.

The whole idea behind comparison tool is to provide choice and transparency to the prospective buyers and thus helping them reach objective and correct buying decision.

Read more about Laptops on www.consumermate.com, your expert buying advice.

David Parks is a well known author and has written articles on Compare laptop Price, Compare laptop features, Manufactures and many other subjects

Best Memory Update Options For Mac and PC

2009-04-26T20:58:00.000-07:00

SATA RAID Solutions were launched in the beginning of 2007 and due to there fast performance they over took the whole market with different types of Hard Drives. A SATA RAID solution for memory storage is very affordable and also provides excellent speed of data rendering. This is usually preferred more on the corporate themed computer systems. The Majority of Systems in Microsoft Workstations work on SATA RAID solutions.

We all know that the Macintosh or Mac has serious issues with memory drive and memory space. But there is an apt solution to the same. If you are tired of those errors that continuously plague your screen with the message like Memory Low! And similar kinds then you should go for boosting up with Internal Drive for Mac or IDE Drives for Mac. The Mac otherwise carries an excellent state-of-art look available on the front end but the only problem for a regular computer savvy person who has ever expanding file system and archives important document on his PC is with the Memory of Mac. The IDE Drives for Mac and Internal Drive for Mac come with all density specifications and we must choose according to our need.

The usual problem with people is that they do not know where to shop these products from even after they identify the right hard disk type for themselves. Luckily, Internet as covered all the nooks and corners of Human lifestyle. At one click of your mouse you can order whatever you wish to buy. So if you are looking for buying such PC hard drive expansions like PATA Hard Drives, RAID Solution, SATA RAID Solution, Internal Drive for Mac or IDE Drive for MAC then you should already be searching net for a website that offers all these without any hassle. There are a number of websites available online which host a range of these products and are well trusted amongst people who are regular to the internet shopping. The computer that I am using to draft this article also used to give me trouble each time I used to try to access the files on my D Drive. So I bought RAID SATA Solution from one such site over the net and I was delivered the package the very next day with the installation guide! Much thanks to the Internet!

For more information regarding: G5 MEMORY, MAC PRO MEMORY UPGRADES, MACBOOK MEMORY, MACBOOK PRO MEMORY, RAID Solutions please visit : http://www.transintl.com

A Hard Disk Crash Could Cost You a Lot

2009-04-26T20:56:00.000-07:00

world when the Computers have overtaken the traditional system of registering information, a Hard Disk Crash
is a nightmare for any business system. A computer’s hard drive quality is any business system’s pulse.
Not only business, if you are a person who likes downloading those full movie DVD’s from file sharing
applications and collecting it on your Hard Drive then you would be familiar with the slow accessing problem
of the Memory. Whilst a lot relies on the RAM, the onus lies on the Hard Drive quality for file rendering time etc.
Hard disk manufacturing is related to precision engineering married to lightning fast electronics.
So ideally all those who have much to do with file storage and Hard drive performance should be considering an
upgrade to prevent a hard disk crash. Isn’t it? A hard disk replacement might sound like a big hassle to some
but to others it might sound like an exercise to oil that geeky cerebrum. Um, of course, with so many alternatives
available in market and so many options at one’s disposal, it is tough to decide to lay finger on the soundest
solution for data storage. So if you are a person who is surfing around for finding information on PATA Hard Drive,
RAID Solutions, SATA Raid Solutions, Internal Drives for Mac or IDE Drives for Mac then this could be the right
article you are reading.

Basically, PATA Hard Drive is an advanced form of ATA Hard Drive systems. It expands
to open into Parallel Advanced Technology Attachment (PATA Hard Drive). The PATA Hard Drive differs amongst all
the other forms of Hard Drive by providing the data rendering at an amazing speed. It is far more advanced than
the ATA Technology. The Difference in PATA Hard Drive is reflected at the level of data connector cable itself.
In the PATA Hard Drive the cable has 16 pins in all and allows the transfer of 16 bytes/transfer call.
Next comes the RAID Solutions for Hard Disk type. Redundant Array of Inexpensive Disk this is the full
form of RAID in RAID Solutions. This is the right type of hard disk if you are looking for cheap solutions
to Data Storage. Precisely speaking, RAID Solutions allow writing of data to multiple memories.
These hard drives need not be very expensive. Due to the division of data storage the performance
is much better in RAID Solutions as compared to the other form of Data Storage Drive.

For more
information regarding : MAC Pro Memory, MAC accessories, iMAC Memory, MAC Pro Memory Upgrades
and RAID Solutions please visit: http://www.transintl.com

How To Play Online Blackjack

2009-04-25T00:55:00.000-07:00

In recent years, online black jack has become increasingly popular. Online casinos have begun to include the game in their selection. But to the newbie, the game may still be a little bit confusing to play.

The first thing that will perhaps be a little problematic for the blackjack player is the switch from the table top to the virtual desktop. However, online casinos have taken notice and have refined the gameplay.

The interface of most black jack games is made in a very intuitive manner. The actions needed to be done are only selecting and clicking the desired options. The virtual cards are generated and presented to the player to the players, as well as the dealer's face up card. Betting is also relatively easy as the player only needs to type in the amount of his intended bet and press the OK button on the panel. The amount is then automatically deducted from his account. Additional play and betting options are placed conveniently at the side of the game screen. All the player needs to do is click the icon of the desired option and the action is automatically done by the computer.

For those who may still be missing the feel of the real world casino, online casinos have relied on the wonders of video game technology to emulate the atmosphere of the real thing. Many online casinos now present their sites in themes reminiscent of real life Vegas establishments. The blackjack game is also made to look similar to a real card table, complete with 3D effects.

Online blackjack's gameplay is still the same as the tabletop one, albeit much faster. The hands are generated instantly during each round, making the game faster.

The game's goal is still the same. At the start of each round, the player is given two cards. The player's cards must have at most a total of 21. If the player exceeds 21, he busts and losses his bet. The player can hit depending on the situation. The player simply clicks on the hit button and the card is presented to him. He can also opt to split the cards in his hand to up his chances. This and other options can be simply clicked on the game screen.

Perhaps one of the most noticeable differences in playing online blackjack is the strategies needed in the game. Sadly, card counting is definitely out of the question, since the cards are generated randomly during play. One thing that can be useful to note, however, is that, while cards are generated randomly, the outcome still follows that of a standard deck. Thus, if a card has already been dealt, it can not be generated until the next round, where the cards are “reshuffled” for a new deck. This can help you to at least keep track of the cards during play, unless of course, you are playing multiple decks, which makes it virtually impossible to know where the cards are coming from in online play.

Bluffing is also pretty much useless in online blackjack play, for the more obvious reason that no one will see anything except your username.

Perhaps the greatest question in players' minds is how to get their winnings. Funds are easily transferred from the site to the account that the gamer uses. In case of direct payments, the casino also supports popular online baking systems for depositing winnings. Gamers can quickly convert these winnings into real cash by processing the necessary requirements from the banks to withdraw the money.

Barcode Printing Software

2009-04-25T00:38:00.001-07:00

Barcode label designing tool facilitates user to change look and feel of generated barcode sticker or image. Barcode label creating software accurately creates barcode sticker, image, ribbon or sticker. Free barcode asset tags maker application creates commercial barcode label, ribbon or sticker. Bar code label builder program generate barcode image at user specified location in gif, jpg or bmp file format. Barcode image printing utility produce barcode asset tags or label with supports to Code128, Postnet, Codabar etc. Download barcode label maker wizard that provide option to change barcode color, caption font, caption color or background color. Barcode tag designing software create professional look barcode sticker, ribbon or label in bulk. Barcode sticker generator tool create barcode label or ribbon for telecom, chemical or electronic industry. Barcode tag creator software develop barcode sticker using numbers (0 to 9), special characters (&, $ etc), upper or lower case letters.

Fuel up Your Dying MAC

2009-04-25T00:32:00.000-07:00

Apple has released an army of products that have excellent translucent sheen to there surface. But what Apple forgot was to add some extra memory in its systems. iMAC memory ranges from 2GB to 4GB for a 24inch model. The otherwise slick system has always been good on performance if it were not for the iMAC memory. Thankfully, there are a number of iMAC memory upgrades available. These days with the market coming closer to you on your very own PC with internet connectivity. There is no need to walk into a computer geek-store for buying an extra Mac book memory, Mac Pro Ram or Internal Drives for Mac.
The Mac book follows the same suit, the Mac Book memory is 1 GB when bought but the ports provided in Mac book allow full expandability to the Mac book memory. Now that would do away that annoying error message wont it? Mac book memory is expandable up to 4GB through the expandability ports in the Mac book. The sexy Aluminum facet that Mac book offers for all the executive business class now has some solid teeth to them with these iMac memory expandability options available.
The muscular Mac Pro workstation by Apple uses up a lot of RAM when it comes to taking the work load. Mac Pro RAM is originally printed at 2 GB on the box. But as you attach more clients to this workstation the Mac Pro RAM comes at test. So before your Mac Pro RAM gives up and you have a system crash. Go for the Upgrade. The Mac Pro RAM memory upgrades range up to 4TB.
Internal Memory for Mac products are excellent performance solutions as they quickly boot on the Mac Os X environment. The Internal Memory for Mac ranges up to 8 GB. There is no denying the fact that Mac produces excellent hardware with superb look and performance but then without these memory updates like iMAC memory, Mac book Memory, Mac pro RAMs and Internal Drives For Mac these hardware are not complete on a Tech-Pro’s scale of usability and performance.
Thanks to a few most reliable websites on the internet, which provide quick delivery of these products within 24 Hours (FedEx) and also assure the quality of such products to be at par with the standards.
For more information regarding: MAC Pro Memory , MAC accessories, iMAC Memory, MAC Pro Memory Upgrades, RAID Solutions; please visit :www.transintl.com.

The AIT data tape

2009-04-25T00:31:00.001-07:00

AIT-2 WORM Tape Bookmark and Share By: Tape4backup.com
A new and different approach is used for processing the AIT data tape. The AIT tape reel is passed through a vacuum compartment. This compartment contains vapours. The vapor molecules bond to the AIT tape reel without adhesives and become a part of it. The tape reel is made more tough and strong by the DLC (diamond like carbon) coating. Coating of DLC helps in protecting the deposited layer of vapours and prevents them from being scratched from AIT reel’s surface. The initial native capacity offering of the AIT-1 tape was 25GB. And in 1999, its uncompressed capacity was enhanced to 35 GB. The AIT technology is ideal for archival of securities, insurance, medical, government and financial data as its additional security features protects against data alteration, malicious or inadvertent data deletion.

The second generation of AIT is fully compatible with its prior version. Compressed per cartridge capacity of AIT-2 tape is 130GB with native rate speed of 6 MB/s. Increased performance, robustness and capacity of AIT tape is the result of advancements in the key functional technologies that include design of media mechanism and formulation, channel coding, built-in LSI chips and recording heads. The hyper laminate metal heads patented by Sony are used in the AIT-2 tape drive that increases the signal output in comparison to other traditional tape heads.

For online order of HP LTO-4, Maxell LTO-2, HP AIT-1 tape, Quantum LTO1, Sony AIT turbo, AIT-5 and AIT-4 data tape please visit Tape4backup dot com.

So the recording density in Sony AIT2 tape format is increased up to 50 percent. High speed of drums, longer tape and higher frequency of data recording provide high transfer speed and enhanced capacity. TCPR (Trellis Coded Partial Response) was developed by Sony that enables optimized coding for the high density AIT tape technology. TCPR is also helpful in lowering the tape media’s susceptibility to noise and also promotes the data reliability. MIC interface system is the most unique and powerful feature of Sony AIT tape format.

Sony SDX2-50C AIT-2 cartridge has memory chip of 64 Kilobytes. Search map, user definable data and system log information is recorded on AIT tape’s MIC chip. This information is useful that helps in gaining immediate data access irrespective of the tape section that is being accessed. The average data access time is 100 sec in the traditional and other competing tape formats. On the other hand, the average data access time in AIT 2 tape format is less than 20sec, because the MIC chip has the capacity to support multiple load-points and partitions. The key technology in the unmatchable performance of AIT tape format is the field proven and highly durable Advanced Metal Evaporated technology.

AME media’s latest and advanced formulation along with DLC coating is used in Sony SDX2-50W AIT 2 tape. These technologies improves the tolerance and resistance of tape media and ensures long head life. Sony added advanced data security technologies and WORM technique in the AIT2 tape format. The AIT technology is ideal for archival of securities, insurance, medical, government and financial data as its additional security features protects against data alteration, malicious or inadvertent data deletion.

For online order of HP LTO-1 tape, DDS tape, Travan tape, Sony LTO1 tape, TDK LTO-3, Dell LTO4, LTO cleaning tape, SLR-MLR tape, DAT-72 tape drive, Bluray DVD disk, LTO-4 tape drive and USB drive visit Tape4backup dot com.

SearchEngineOptimation

2009-03-31T22:56:00.000-07:00

An online entrepreneur would like his website to be the first name in the result that search engines throw up for relevant topics. At times, you must have come across a certain Search Engine Optimizer (SEO) that guarantees a place of your website in the top 10 results. This is exactly what you want, but exactly something you mustn’t buy!

No company on earth can assure you a forefront place in the search engines. There exists no SEO tools that can make your site attain overnight popularity, but what exists are merely some tricks, which the SEO firms use to make some quick bucks. However, their tool will do your site anything but good. Assume that this works and your site is right on the top of the search results, and stays for quite a period of time. But no sooner than the search engines get across these tricks, than they will impose a penalty. That’s what a black hat SEO is – fooling the search engines. For the benefit of one’s own business, one should shy away from such SEO firms and avoid the following things:

Surfing pages with keywords:
Cramming the pages of your website with the main words, fonts and color, etc., can easily make the search engine find out that the result will be degrading for their website and will get you banned, like for instance, getting banned from the output of Google or Ask Jeeves.

Invisible text:
This is almost the same as cramming the key words. Invisible text is considered a big spam by the search engines and can be extremely harmful for your website, so why use it in the first place?

Doorway pages:
These are the non-existent or the fake pages which are accustomed to being displayed for specific words or phrases which are viewed mainly by the search engines rather than the visitors. The entire logic behind the building of a Search Engine Optimizer is to enhance the experience of the user, and getting web pages that no living person can ever view will surely not be viewed as immoral. Many main search engines like Google, etc. have severe policies to combat doorway pages.

Linking farms:
Many popular search engines are against artificial linking like link stuffing and link farms, etc. So linking farms will do nothing but get your site banned from the database of the search engine.

It can be concluded that whatever the search engines view as being spam or junk, is banned by them. Most of the techniques are bound to get you result in the short-term, but in the long-run, a ban or a flag is all that you will get. Moreover, using a black hat SEO also raises serious doubts on the credibility of your website and business that you’re pursuing online.

So rather than opting for a SEO, its better to get your site fixed by page optimization. And while doing it, it’s better not to keep in mind the search engines. The main priority should be the benefit of your end-customers. If you’re being loyal to them, the net result will automatically follow and instead of gaining popularity by immoral means, you’ll gain it even without these SEO, and the search engines respect that!

William King is the director of Wholesale Pages UK: http://www.wholesalepages.co.uk , Wholesale Suppliers & UK Trade Dropshipping Directory: http://www.uk-wholesaler.co.uk and Wholesale Dropshippers & Wholesalers Dropshipping Product Suppliers Directory: http://www.aidandtrade.com . He has 18 years of experience in the marketing and trading industries and has been helping retailers, entrepreneurs and startups with their product sourcing, promotion, marketing and supply chain requirements.

Laptop

2009-03-31T22:42:00.000-07:00

Saving data on laptops allows us to take it anywhere, be it to office or some other place. As the technology is growing and businesses are seeking extra employee efforts and intercommunication, most of the companies nowadays issue laptops to their employees. But the fact that laptops may lose data more frequently than desktops, basically due to physical failure raises the need of Laptop Data Recovery. So, in order to avoid data loss, it is recommended to always have in-place backup of all important data.

Laptop hard drive is comparatively more prone to damages even after the available shock protection because of small size of the system. Accidental dropdown and improper handling are two main causes that cause laptop hard drive failure. Because of the reason that laptops are used everywhere like indoor and outdoor locations, jerks and shocks can break the hard drive components. Also damages can occur due heat, dust, water etc.

Due to the fact that laptop hard drives contain significant professional information, laptop hard drive failure needs technical and precise Laptop Hard Drive Recovery approach.

Laptop Recovery Service engineers apply careful procedures to repair damaged components of failed hard drive. As the laptop hard drives are quite difficult to detach for a normal user and also from data integrity point of view, it is generally recommended to send the laptop to Data Recovery Company. However the basic concerns about maintaining and treating the failed hard drive are same as for desktop hard drive. It is recommended not to attempt running the system with failed hard drive. The hard drive data may become irrecoverable if the platter portion is physically damaged like scratched which cause physical bad sectors.

Laptop Hard Drive Recovery service has set a trademark since the last decade in recovering data. The reasons are growing technologies and tools trends. The use of class 100 Clean Room technologies in data recovery field has also eased and made Laptop Recovery Service a contraceptive option.

Stellar Information Systems Limited offers you the safest Laptop Recovery Service of the industry. With the help of Class 100 Clean Rooms and technology driven set of tools and techniques, Stellar’s experts can recover data in most of the physical or logical crash cases. Stellar’s Laptop Hard Drive Recovery experts are known for their excellence in the field. They carefully examine the drive and use procedures to recover data. Stellar offers Laptop Recovery Service for all brands and interfaces (including SATA, PATA/EIDE and SCSI) of hard drives along with the modern SSDs (Solid State Drives: generally SATA).

Servesbest is the author of Laptop Hard Drive Recovery, is a regular author since 06 years back.

Mandriva Linux 2009

2009-03-25T22:10:00.000-07:00

Mandriva Linux 2009
Mandriva
OS family = Unix-like
Working state = Current
Initial release = 23 July 1998Â (1998-07-23)
Latest stable release = 2009.0 / 2008-10-09; 166 days ago
Package manager = urpmi
Kernel type = Monolithic
Default user interface = KDE / GNOME
License = Mainly the GNU GPL / Various others
Website = www.mandriva.com

Mandriva Linux showing the menu and the control panel (in French)
Mandriva Linux (formerly Mandrakelinux or Mandrake Linux) is an operating system created by Mandriva (formerly Mandrakesoft). It uses the RPM Package Manager. The product lifetime of Mandriva Linux releases is 18 months for base updates (kernel, drivers etc.) and 12 months for desktop updates (window managers, desktop environments, web browsers etc.) . Server products receive full updates for at least 24 months after their release.

History

The first release was based on Red Hat Linux (version 5.1) and KDE (version 1.0) in July 1998. It has since diverged from Red Hat and has included a number of original tools mostly to ease system configuration. Mandriva Linux was originated by GaÃ«l Duval, and intended to focus on ease of use for new users. Duval was also a co-founder of Mandrakesoft, but was laid off from the company in 2006.[citation needed]

Name changes
From its inception to version 8.0, Mandrake named its flagship distribution Linux-Mandrake. From version 8.1 to 9.2 it was called Mandrake Linux.
In February 2004 MandrakeSoft lost a court case against Hearst Corporation, owners of King Features Syndicate. Hearst contended that MandrakeSoft infringed upon King Features' trademarked character Mandrake the Magician. As a precaution, MandrakeSoft renamed its products by removing the space between the brand name and the product name and changing the first letter of the product name to lower case, thus creating one word. Starting from version 10.0, Mandrake Linux became known as Mandrakelinux, and its logo changed accordingly. Similarly, MandrakeMove became Mandrakemove.
In April 2005 Mandrakesoft announced the corporate acquisition of Conectiva, a Brazilian based company that produced a Linux distribution for Portuguese-speaking (Brazil) and Spanish-speaking Latin America. As a result of this acquisition and the legal dispute with Hearst Corporation, Mandrakesoft announced that the new company name would be Mandriva, and that Mandriva Linux would be the new name covering products.

Features
The major features of Mandriva Linux are:
--> Installation, control and administration
Mandriva Linux contains the Mandriva Control Center, which eases configuration of some settings. It has many programs known as Drakes or Draks, collectively named drakxtools, to configure many different settings. Examples include MouseDrake to set up a mouse, DiskDrake to set up disk partitions and drakconnect to set up a network connection. They are written using GTK+ and Perl, and most of them can run in both graphical and text mode using the ncurses interface.
--> Desktops
Mandriva Linux is geared to use KDE or GNOME as the standard desktops, but includes others such as Xfce and twm.
--> Themes
A unique theme provides consistency between applications and desktop environments. Mandrakegalaxy debuted in version 9.1 and Mandrakegalaxy II appeared in 10.0. A variant of Mandrakegalaxy is "Mandrakegalaxy Squared", which uses square window buttons rather than round ones. A new default theme named "Ia Ora" was introduced with the release of Mandriva Linux 2007, but "Galaxy" remains available as an option for those who prefer it.
--> Package manager
Rpmdrake, Mandriva's graphical package manager
Mandriva Linux uses a package manager called urpmi, which functions as a wrapper to the RPM package management system. It is similar to apt-get or Yellow dog Updater, Modified in that it allows seamless installation of a given software package by automatically installing the other packages needed. It is also media-transparent due to its ability to retrieve packages from various media, including network/Internet, CD/DVD and local disk. Urpmi also has an easy-to-use graphical front-end called rpmdrake, which is integrated into the Mandriva Control Center.
Remote sources for urpmi / rpmdrake can be added during the installation of recent Mandriva Linux versions. After installation, they can be added through an option in the Software Sources Manager, or by using console commands generated either manually or by one of several helper sites such as Easy URPMI. This functionality allows the user to choose some or all of the various software repositories available for their version of Mandriva Linux and can greatly expand the amount of software that the user can install through the urpmi system. Instructions on adding repositories and installing software can be found on the Mandriva Wiki.

Yellow Dog Linux

2009-03-25T21:49:00.001-07:00

Yellow Dog Linux

CompanyÂ / developer
Fixstars Solutions
OS family = Unix-like
Working state = Active
Source model = Free Software / Open source
Latest stable release = 6.1 / 2008-11-19; 125 days ago
Supported platforms = Power Architecture, Cell
Kernel type = Monolithic kernel
Default user interface = Enlightenment
License = GNU GPL, LGPL, others
Website = www.yellowdoglinux.com

Yellow Dog Linux, also YDL, is a free-software, open-source operating system for Power Architecture computers. Developed by Fixstars (formerly known as Terra Soft), Yellow Dog Linux was first released in 1999 for the Apple Macintosh. The most recent version, version 6.1 was released on 19 November 2008 to members only and a month later to everyone.

Features

Screenshot of Yellow Dog Linux Version 6.0 â€˜Pyxisâ€™ depicting Enlightenment, the default window manager.
Yellow Dog Linux is based on the Red Hat Enterprise Linux/CentOS core and relies on the RPM package manager. Yellow Dog Linux includes free software user applications such as Ekiga (a voice-over-IP and videoconferencing application), GIMP (a raster graphics editor), Gnash (a free Adobe Flash player), gThumb (an image viewer), the Mozilla Firefox Web browser, the Mozilla Thunderbird e-mail and news client, the OpenOffice.org productivity suite, Pidgin (an instant messaging and IRC client), the Rhythmbox music player, and the Noatun and Totem media players.
Since YDL version 5.0 â€˜Phoenix,â€™ Enlightenment has been the default desktop environment in Yellow Dog Linux, although GNOME and KDE are also included.
Like other Linux distributions, Yellow Dog Linux supports software development with GCC (compiled with support for C, C++, Java, and Fortran), the GNU C Library, GDB, GLib, the GTK+ toolkit, Python, the Qt toolkit, Ruby, Tcl, and XFree86[clarification needed]. Standard text editors such as Vim and Emacs are complemented with IDEs such as Eclipse and KDevelop, as well as by graphical debuggers such as KDbg. Standard document preparation tools such as TeX and LaTeX are also included.
Yellow Dog Linux includes software suitable for running a Web server (such as Apache/httpd, Perl, and PHP), database server (such as MySQL and PostgreSQL), and network server (NFS and Webmin). Additional software is also included for running an enterprise server or a compute server or cluster, although two separate products from Terra Soft Solutions, called Yellow Dog Enterprise Linux (for enterprise servers) and Y-HPC (for compute servers/clusters), are specifically targeted toward those applications.
Yellow Dog Linux, version 6.0 â€˜Pyxis,â€™ is based on Linux 2.6.23 and ships with GCC 4.1.1, glibc 4.1.1, and Eclipse 3.2.2. This version is also claimed to be the â€œthe only Linux distribution to include by default Cell SDK v3.0.â€�[citation needed] Yellow Dog Linux Version 6.0 â€˜Pyxisâ€™ ships with over 2000 software packages.
Although several other Linux distributions support the Power Architecture, Yellow Dog Linux was distinguished for its focus on supporting the Apple Macintosh platform before the Apple Intel transition. Before this transition, Terra Soft Solutions held the unique distinction of being the only company licensed by Apple to resell Apple computers with Linux pre-installed (or for that matter, with any operating system other than Mac OS X). As a result, compared to other Linux distributions that support the Power Architecture, to this day Yellow Dog Linux has equal or better support â€˜out of the boxâ€™ for Apple hardware, e.g. built-in support for backlit keyboards, power management, and trackpads on Apple iBooks and PowerBooks (Appleâ€™s discontinued line of PowerPC-based notebook computers).[citation needed] For desktop computers like the iMac G4 Ubuntu (or Debian) offers the same hardware support out-of-the-box, though. Full support for AirPort (Appleâ€™s implementation of the IEEE 802.11b-1999 wireless networking standard), and partial support for AirPort Extreme, are also built into Yellow Dog Linux, as are support for Bluetooth and support for accessing the Internet over cellular phones.
Following Appleâ€™s transition to using Intel processors exclusively in their Macintosh line of computers, Yellow Dog Linux has now been retargeted to support the Sony PlayStation 3 and IBM pSeries platforms extensively, while retaining its longstanding support for PowerPC-based Apple hardware.

Conficker

2009-03-24T20:49:00.000-07:00

Common name Conficker
Aliases

* Win32/Conficker.A (CA)
* W32.Downadup (Symantec)
* W32/Downadup.A (F-Secure)
* Conficker.A (Panda)
* Net-Worm.Win32.Kido.bt (Kaspersky)
* W32/Conficker.worm (McAfee)
* Win32.Worm.Downadup.Gen (BitDefender)

Classification Highly Dangerous
Type Computer Worm
Subtype Computer Virus
Author(s)

Conficker, also known as Downup, Downadup and Kido, is a computer worm that surfaced in October 2008 and targets the Microsoft Windows operating system.[1] The worm exploits a known vulnerability in the Windows Server service used by Windows 2000, Windows XP, Windows Vista, Windows Server 2003, Windows Server 2008, and the Windows 7 Beta.

Operation

The Conficker worm spreads itself primarily through a buffer overflow vulnerability in the Server Service on Windows computers. The worm uses a specially crafted RPC request to execute code on the target computer.

When executed on a computer, Conficker disables a number of system services such as Windows Automatic Update, Windows Security Center, Windows Defender and Windows Error Reporting.

It receives further instructions by connecting to a server. The instructions it receives may include to propagate, gather personal information and to download and install additional malware onto the victim's computer. The worm also attaches itself to certain Windows processes such as svchost.exe, explorer.exe and services.exe.

The worm seems to implement some of the ideas presented by Fucs, Paes de Barros e Pereira at the Blackhat Briefings Europe 2007, specifically: digitally signed additional payload, use of PRNG for communication and P2P communication.

Payload

The "A" variant of Conficker will create an HTTP server and open a random port between 1024 and 10000. If the remote machine is exploited successfully, the victim will connect back to the HTTP server and download a worm copy. It will also reset System Restore points, and download files to the target computer.

Symptoms of infection

* Account lockout policies being reset automatically.
* Certain Microsoft Windows services such as Automatic Updates, Background Intelligent Transfer Service (BITS), Windows Defender and Error Reporting Services are automatically disabled.
* Domain controllers respond slowly to client requests.
* System network gets unusually congested. This can be checked with network traffic chart on Windows Task Manager.
* On websites related to antivirus software, Windows system updates cannot be accessed.
* Launches a brute force dictionary attack against administrator passwords to help it spread through ADMIN$ shares, making choice of sensible passwords advisable.

Impact

Experts say it is the worst infection since the SQL Slammer. Estimates of the number of computers infected range from almost 9 million PCs (by CNN and antivirus software vendor F-Secure, 1/16/2009 ) to 15 million computers (The Independent newspaper, 1/25/2009).

Another antivirus software vendor, Panda Security, reported that of the 2 million computers analyzed through ActiveScan, around 115,000 (6%) were infected with this malware.

The potential scale of infection is large because 30 percent of Windows computers do not have the Microsoft Windows patch released in October 2008 to block this vulnerability.

The U.K. Ministry of Defence reported that some of its major systems and desktops were infected. The worm has spread across administrative offices, NavyStar/N* desktops aboard various Royal Navy warships and Royal Navy submarines, and Hospitals across the city of Sheffield reported infection of over 800 computers.

On February 6, 2009, the computers used by the Houston Municipal Courts were infected with Conficker. How the virus got into the system is unknown.[21]

On February 13 the Bundeswehr reported that some hundred of their computers were infected.

Response

On February 12, 2009, Microsoft announced the formation of a technology industry collaboration to combat the effects of Conficker. Organizations involved in this collaborative effort include Microsoft, Afilias, ICANN, Neustar, Verisign, CNNIC, Public Internet Registry, Global Domains International, Inc., M1D Global, AOL, Symantec, F-Secure, ISC, researchers from Georgia Tech, The Shadowserver Foundation, Arbor Networks and Support Intelligence.

As of February 13, 2009, Microsoft is offering a $250,000 USD reward for information leading to the arrest and conviction of the criminals behind the creation and/or distribution of Conficker.

Patching and removal

On 15 October 2008 Microsoft released a patch (MS08-067) to fix the vulnerability. Removal tools are available from Microsoft, BitDefender, ESET, Symantec, Sophos, and Kaspersky Lab, while McAfee and AVG can remove it with an on-demand scan. While Microsoft has released patches for the later Windows XP Service Packs 2 and 3 and Windows 2000 SP4 and Vista, it has not released any patch for Windows XP Service Pack 1 or earlier versions (excluding Windows 2000 SP4), as the support period for these service packs has expired. Since the virus can spread via USB drives that trigger AutoRun, disabling the AutoRun feature for external media (through modifying the Windows Registry) is recommended. However the United States Computer Emergency Readiness Team describe Microsoft's guidelines on disabling Autorun as being "not fully effective," and they provide their own guides. Microsoft has released a removal guide for the worm via the Microsoft website.

Also, on March 16, 2009, BitDefender released an updated tool to remove the already famous Downadup/Conficker worm on a new domain that has not been blocked by the malicious computer code at a website called "bdtools.net".

Apart from the fact that the BitDefender tool removes the latest and most resilient to disinfection release of the virus, it also comes as a separate installer dedicated to network administrators. In this way, the scanner can be dispatched throughout networks in order to remotely scan and disinfect workstations.

Windows 7

2009-03-23T10:09:00.000-07:00

Windows 7 (formerly codenamed Blackcomb and Vienna) is the next release of Microsoft Windows, an operating system produced by Microsoft for use on personal computers, including home and business desktops, laptops, Tablet PCs, netbooks and media center PCs. Microsoft stated in 2007 they were planning Windows 7 development for a three-year time frame starting after the release of its predecessor, Windows Vista. Microsoft has stated that the final release date would be determined by product quality.
Unlike its predecessor, Windows 7 is intended to be an incremental upgrade from Vista, with the goal of being fully compatible with device drivers, applications, and hardware with which Windows Vista is already compatible. Presentations given by the company in 2008 have focused on multi-touch support, a redesigned Windows Shell with a new taskbar, a home networking system called HomeGroup, and performance improvements. Some applications that have been included with prior releases of Microsoft Windows, most notably Windows Movie Maker, and Windows Photo Gallery, are no longer included with the operating system; they are instead offered separately (free of charge) as part of the Windows Live Essentials suite.
Development
Main article: Development of Windows 7
Originally, a version of Windows codenamed Blackcomb was planned as the successor to Windows XP and Windows Server 2003. Major features were planned for Blackcomb, including an emphasis on searching and querying data and an advanced storage system named WinFS to enable such scenarios. Later, Blackcomb was delayed and an interim, minor release, codenamed "Longhorn" was announced for 2003. By the middle of 2003, however, Longhorn had acquired some of the features originally intended for Blackcomb. After three major viruses exploited flaws in Windows operating systems within a short time period in 2003, Microsoft changed its development priorities, putting some of Longhorn's major development work on hold in order to develop new service packs for Windows XP and Windows Server 2003. Development of Longhorn (Windows Vista) was also "reset" in September 2004.
Blackcomb was renamed Vienna in early 2006, and again to Windows 7 in 2007. In 2008, it was announced that Windows 7 would also be the official name of the operating system. The first external release to select Microsoft partners came in January 2008 with Milestone 1 (build 6519).
Bill Gates, in an interview with Newsweek, suggested that the next version of Windows would "be more user-centric". Gates later said that Windows 7 will also focus on performance improvements; Steven Sinofsky later expanded on this point, explaining in the Engineering Windows 7 blog that the company was using a variety of new tracing tools to measure the performance of many areas of the operating system on an ongoing basis, to help locate inefficient code paths and to help prevent performance regressions.
Senior Vice President Bill Veghte stated that Windows 7 will not have the kind of compatibility issues with Windows Vista that Vista has with previous versions. Speaking about Windows 7 on 16 October 2008, Microsoft CEO Steve Ballmer confirmed compatibility between Vista and Windows 7. Ballmer also confirmed the relationship between Vista and Windows 7, indicating that Windows 7 will be an improved version of Vista.
On 27 December 2008 Windows 7 Beta was leaked onto the Internet. According to a performance test by ZDNet, Windows 7 Beta has beaten both Windows XP and Vista in several key areas, including boot and shut down time, working with files and loading documents; others, including PC Pro benchmarks for typical office activities and video-editing, remain identical to Vista and slower than XP. On 7 January 2009, the 64-bit version of the Windows 7 Beta (build 7000) was leaked onto the web.
The official beta, announced at the CES 2009, was made available to MSDN and TechNet subscribers on 7 January 2009 and was made briefly available for public download on Microsoft TechNet on 9 January 2009 before being withdrawn and replaced with a coming soon message. The servers were experiencing difficulty in dealing with the number of users who wished to download the beta. Microsoft added additional servers to cope with the large volume of interest from the public. Due to the unexpectedly high demand, Microsoft also decided to remove its initial 2.5 million download limit and make it available to the public until January 24 2009, and later until February 10, from where it was no longer available to the public, although paused or deferred downloads of the DVD image files still worked until February 12.
Users can still download Windows 7 via the Microsoft Connect program. According to Neowin, the release candidate is scheduled to be released wordwide on 10 April 2009.
Features
New and changed features
Main article: Features new to Windows 7
WordPad in Windows 7 with the ribbon interface
The new Windows Action Center which replaces Windows Security Center Windows 7 includes a number of new features, such as advances in touch, speech, and handwriting recognition, support for virtual hard disks, improved performance on multi-core processors, improved boot performance, and kernel improvements.
Windows 7 adds support for systems using multiple heterogeneous graphics cards from different vendors, a new version of Windows Media Center, a Gadget for Windows Media Center, improved media features, the XPS Essentials Pack and Windows PowerShell being included, and a redesigned Calculator with multiline capabilities including Programmer and Statistics modes along with unit conversion.
Many new items have been added to the Control Panel, including ClearType Text Tuner, Display Color Calibration Wizard, Gadgets, Recovery, Troubleshooting, Workspaces Center, Location and Other Sensors, Credential Manager, Biometric Devices, System Icons, and Display. Windows Security Center has been renamed to Windows Action Center (Windows Health Center and Windows Solution Center in earlier builds) which encompasses both security and maintenance of the computer.
The taskbar has seen the biggest visual changes, where the Quick Launch toolbar has been replaced with pinning applications to the taskbar. Buttons for pinned applications are integrated with the task buttons. These buttons also enable the Jump Lists feature to allow easy access to common tasks. The revamped taskbar also allows the reordering of taskbar buttons.
Adjacent to the system clock is a small rectangle button for the new feature Peek. Hovering over this button makes all visible windows transparent for a quick look at the desktop. Clicking this button minimizes all windows.
Unlike Windows Vista, window borders, and the taskbar do not turn opaque when a window is maximized with Windows Aero applied. Instead, they remain transparent.
For developers, Windows 7 includes a new networking API with support for building SOAP based web services in native code (as opposed to .NET based WCF web services), new features to shorten application install times, reduced UAC prompts, simplified development of installation packages, and improved globalization support through a new Extended Linguistic Services API.
At WinHEC 2008 Microsoft announced that color depths of 30-bit and 48-bit would be supported in Windows 7 along with the wide color gamut scRGB (which for HDMI 1.3 can be converted and output as xvYCC). The video modes supported in Windows 7 are 16-bit sRGB, 24-bit sRGB, 30-bit sRGB, 30-bit with extended color gamut sRGB, and 48-bit scRGB. Microsoft is also investigating better support for Solid State Drives and Windows 7 will be able to identify a Solid State Drive uniquely.
Online versions of Spades, Backgammon and Checkers were removed from Windows Vista, but restored in Windows 7.
Windows 7 will include Internet Explorer 8 and Windows Media Player 12.
Users will also be able to disable many more Windows components than was possible in Windows Vista. New additions to this list of components include Internet Explorer 8, Windows Media Player, Windows Media Center, Windows Search, and the Windows Gadget Platform.
Removed features
While Windows 7 contains many new features, a number of capabilities and certain programs that were a part of Windows Vista are no longer present or have changed, resulting in the removal of certain functionality. The following is a list of features that were present in Windows Vista but have been removed in Windows 7.
Several shell features including:
Classic Start menu user interface
Floating Deskbands (was deprecated in Windows Vista, now deskband can be only pinned to taskbar)
Windows Media Player Mini-player (replaced with the new Jump list feature)
Pinning default Internet Browser and E-mail client software programs on Start menu by default (programs can be manually pinned)
The ability to disable grouping (placing next to each other) similar taskbar buttons
Combined taskbar buttons no longer numerically show how many windows are in their stack.[citation needed]
The Taskbar network icon does not show network activity animation.
Advanced search builder UI.
Some Windows Media Player features:
Advanced Tag Editor
Paste Album Art
Recently added Auto playlist
Windows Photo Gallery, Windows Movie Maker, Windows Mail and Windows Calendar (in favor of downloading or using online the free respective Windows Live counterparts, which lack some features) although the Photo Viewer module of Windows Photo Gallery has been retained.
Software Explorer feature of Windows Defender
Removable Storage Manager (RSM)[43] (applications dependent on it, such as NTBackup or the NTBackup Restore Tool, cannot run)
Windows Meeting Space[citation needed]
The ability to search contents of files using Windows Search.
InkBall, a game
The numeric keypad from On-Screen Keyboard
Microsoft Agent 2.0 Technology
Windows Sidebar (replaced with Desktop Gadget Gallery)
Windows Ultimate Extras in the Ultimate edition
Antitrust regulatory attention
As with other Microsoft operating systems, Windows 7 is being studied by United States federal regulators who oversee the company's operations following the 2001 United States v. Microsoft settlement. According to status reports filed, the three-member panel began assessing prototypes of the new operating system in February 2008. Michael Gartenberg, an analyst at Jupiter Research said that, "[Microsoft's] challenge for Windows 7 will be how can they continue to add features that consumers will want that also don't run afoul of regulators."
K:\Windows_7.htm - cite_note-ComputerWorld13mar08-44
It has been noted that in Europe Windows 7 may be required to ship with rival browsers including possibly Mozilla Firefox, or Google Chrome. The reason for this suspicion is on the inclusion of Internet Explorer which is seen as harming competition. However, Microsoft announced on the Engineering Windows 7 blog that users will be able to turn off more features than in Windows Vista including Internet Explorer.
Editions
Main article: Windows 7 editions
Windows 7 will be released in six editions, although only two of them, the Home Premium and Professional editions, will be most emphasized. The names given to them will be the same as in Windows Vista, except for the Business edition which will become Windows 7 Professional.
Only Home Premium, Professional, and Ultimate editions will be available at retail stores and through most OEMs. Home Basic will be only available to emerging markets, Enterprise only through Volume Licensing and Starter only to selected OEMs.[citation needed] Microsoft has yet to announce the pricing for the editions.
Each successive edition will include all the features of the more basic editions. As a result, upgrading from one edition to another will be simplified and more seamless.
Hardware requirements
Microsoft has published their recommended specifications for a system running Windows 7 beta. Since Windows 7 is similar to Windows Vista, the recommended specifications are much the same as for premium editions of Vista.
Windows 7 beta recommended specifications
Processor spedd : 1GHz (either 32-bit or 64 bit)
Memory RAM : 1GB
Graphics Card : DirectX 9.0 capable
Graphics memory : 128 MB (for Windows Aero)
HDD free space : 16GB
Other : DVD ROM, Audio Output

Nokia 6600

2009-03-20T01:14:00.001-07:00

The Nokia 6600 is a mobile phone launched in the second quarter of 2003, costing approximately €600, was Nokia's high-end model of the 6xxx Classic Business Series of mobile phones. At the time of release, it was the most advanced product ever launched by Nokia.[1] It is a smartphone running on the Symbian OS-based Nokia Series 60 platform. It should not be confused with the newer Nokia 6600 fold and Nokia 6600 slide phones which have little resemblance to the original 6600.
A variant of the Nokia 6600 was launched in the U.S. market as the Nokia 6620.
Features
• Integrated (VGA 640x480) camera
• Video recorder with audio support (records up to 95 KB - from 9 to 27 seconds - with built-in recorder application)
• Streaming video and audio
• Wireless connectivity with Bluetooth and IrDA
• 6 MB internal memory
• Memory card slot for additional user memory and applications
• Java MIDP 2.0 and Symbian(series 60) applications
• Data synchronization with PC via PC Suite and iSync
• Tri-band operation in GSM E900/1800/1900 networks
Additional features:
• ARM compatible (ARM4T architecture)
• Symbian Operating System 7.0s
• CPU running at 104 MHz
• 6MB of built in memory
• MMC card slot
• 176x208 (65,536 colours) TFT display
• 5-way joystick navigation
• HSCSD and GPRS, for internet/WAP access
Although the initial batches of the Nokia 6600 were not stable, later system software upgrades corrected the situation.
The phone has the capacity to support the installation of a wide range of third-party software such as mp3 and multimedia players, games, web browsers, GPS navigation, office suites, and GUI themes, via Java and ePoc (*.sis) installers. GUI themes can be created using the free Nokia Symbian Theme Studio.
The model was released to the general public in two color schemes: black and white and full black. Additional color schemes (blue and white, pink) were produced for promotional purposes.
In the year 2007, Nokia stopped production of the 6600 handsets. In India, this mobile phone dominated the mobile market for a lot of time.
Popular usage
The Nokia 6600 features in the following films:
• Cellular (2004), used by Chris Evans' character
• Silver Hawk (2004)
• Transporter 2 (2005)
• Aamir (2008), used by the main character
• Kidnap (2008), used by Imran Khan's character
• Manmathan (2004), used by Silambarasan's character

Intel Core i7

2009-03-19T10:43:00.000-07:00

Intel Core i7 is a family of three Intel desktop x86-64 processors, the first processors released using the Intel Nehalem microarchitecture and the successor to the Intel Core 2 family. All three current models and two upcoming models are quad-core processors.[1][2][3][4] The Core i7 identifier applies to the initial family of processors[5][6] codenamed Bloomfield.[7] Intel representatives state that the moniker Core i7 does not have any deeper meaning. The name continues the use of the successful Core brand.[8] Core i7, first assembled in Costa Rica, [9] was officially launched on November 17, 2008 [10] and is manufactured in Arizona, New Mexico and Oregon, though the Oregon plant is moving to the next generation 32 nm process.
Features
The Nehalem microarchitecture has many new features, some of which are present in the Core i7. The ones that represent significant changes from the Core 2 include:
The new LGA 1366 socket is incompatible with earlier processors.
On-die memory controller: the memory is directly connected to the processor.
Three channel memory: each channel can support one or two DDR3 DIMMs. Motherboards for Core i7 have four (3+1) or six DIMM slots instead of two or four, and DIMMs can be installed in sets of three or two.
Support for DDR3 only.
No ECC support.
The front side bus is replaced by QuickPath interface. Motherboards must use a chipset that supports QuickPath.
The following caches:
32 KB L1 instruction and 32 KB L1 data cache per core
256 KB L2 cache (combined instruction and data) per core
8 MB L3 (combined instruction and data) "inclusive", shared by all cores
Single-die device: all four cores, the memory controller, and all cache are on a single die.
"Turbo Boost" technology allows all active cores to intelligently clock themselves up in steps of 133 MHz over the design clock rate as long as the CPU's predetermined thermal and electrical requirements are still met.[11]
Re-implemented Hyper-threading. Each of the four cores can process up to two threads simultaneously, so the processor appears to the OS as eight CPUs. This feature was present in the older NetBurst microarchitecture but was dropped in Core.
Only one QuickPath interface: not intended for multi-processor motherboards.
45nm process technology.
781M transistors for the quad core version.
263mm2 Die size.
Sophisticated power management can place an unused core in a zero-power mode.
Support for SSE4.2 & SSE4.1 instruction sets.
Processor cores
The clock rates listed here are as specified by Intel for normal mode. "Turbo boost" can increase the rate on active cores in steps of the base clock (133MHz if not overclocked) up to a predetermined limit for short periods when required, which can be useful with single threaded applications.
The 965 XE has separate unlocked multipliers for memory and cores.
Core clock above those in the table are not guaranteed by Intel.[4] Rates above 5GHz have been reported.
Memory rates above those in the table are not guaranteed by Intel.[4] Rates above DDR3-2000 have been reported.
The processor has a Thermal Design Power of 130W and will slow itself down if this power is exceeded. This feature can be disabled from an option in most of the new motherboards' BIOS.[12]
Performance
The Inquirer managed to get a 965 engineering sample to a core clock speed of up 4GHz with fan cooling and Turbo Booster alone.[16]
IT OC Taiwan overclocked an engineering sample of the 965, to 4.20 GHz with a QPI speed of 200 MHz and a multiplier value of 21.0x. A vCore setting of 1.72V was used, which is far higher than the stock of 1.25V.[17]
A Core i7 940 system running at stock speeds has obtained a 3DMark Vantage benchmark CPU score of 17,966.[18] A Core i7 920 system scored 16,294 running at stock speeds. An Intel Core 2 Extreme QX9770, a very expensive member of the previous generation of Intel processors (costing over four times the price of the 920 at its launch), scored 13,182 also running at stock speeds.[19]
AnandTech tested the Intel QuickPath Interconnect (4.8 GT/s version) and found the copy bandwidth using triple-channel 1066 MHz DDR3 was 12.0 GB/s. A 3.0 GHz Core 2 Quad system using dual-channel 1066 MHz DDR3 achieved 6.9 GB/s.[20]
Maximum PC has discovered that Intel has unlocked the clock and memory multipliers on retail 920's and 940's. This is allegedly due to consumer feedback. [21]
Core i7-975 will have the new D0 Stepping.
Overclocking
The process of overclocking the Core i7 architecture is similar to that of the AMD architecture due to the on-die MCH.[22] Over-clocking will be possible with the 900 series and a motherboard equipped with the X58 chipset. In early October 2008, reports surfaced that it will not be possible to use "performance" DDR3 DIMMs that require voltages higher than 1.65v, because the integrated memory controller within the Core i7 will be damaged.[23]
The Core i7 has three memory channels, and the channel bandwidth can be selected by setting the memory multiplier. However, in early benchmarks, when the clock rate is set higher than a threshold (1333 for the 965XE) the processor will only access two memory channels simultaneously. A 965XE has higher memory throughput with 3xDDR3-1333 than with 3xDDR3-1600, and 2xDDR3-1600 has almost identical throughput to 3xDDR3-1600.[16]
Drawbacks
The Core i7 does not support error-correcting memory.[2][3][4] Some high-end motherboards that support the Core i7 advertise support for ECC memory, for example Supermicro's C7X58 and X8SAX (see Supermicro's X8SAX page), however, in the same motherboard manuals, it is made clear that ECC is only supported if the CPU has the feature enabled.
Some early articles suggested that i7's design is not ideal for gaming performance. In a test performed on leaked hardware, a Core i7 940 compared to a QX9770 showed the Core i7 to be slower than Yorkfield clock-for-clock in two trials, while being faster in two others. The difference in all cases was small, and was due to the significantly smaller sized L2 cache on the processor cores, with each core able to access its own 256 kB of L2 cache. In contrast, the most recent Yorkfields have up to 12 MB of L2 cache. To help compensate, the Core i7 also has a new L3 cache of 8 MB, shared among all four cores, similar to AMD's "Barcelona" processors. This is due to the trend of games making use of more threads, and with hyper-threading (HT) the Core i7 can scale more than 4x faster, such as in cinebench tests.[24] However, more recent testing done on all clock rates of official hardware with final drivers and BIOS revisions show that Core i7 at the very least beats Yorkfield clock-for-clock, and in most cases exceeds it by an average of about 17%.[25] But when it comes to high-end multi-GPU environments (Nvidia 3-way SLI and ATI Crossfire X), the i7 is revealed to be much faster than Yorkfield (QX9770) in clock-for-clock.[26]

Mac OS X v10.5

2009-03-19T10:23:00.000-07:00

Mac OS X version 10.5 "Leopard" is the sixth major release of Mac OS X, Apple’s desktop and server operating system for Macintosh computers, and the successor to Mac OS X v10.4 "Tiger". Leopard was released on 26 October 2007, and is available in two variants: a desktop version suitable for personal computers, and a server version, Mac OS X Server. Apple offers a reduced-cost upgrade to people who purchased new Apple computers after 1 October 2007 that do not already have Mac OS X v10.5 pre-installed or a Leopard upgrade DVD included. Steve Jobs stated at Macworld 2008 that over 20% of Macs use Leopard as their operating system. Leopard will be superseded by Mac OS X v10.6 "Snow Leopard". According to Apple, Leopard contains over 300 changes and enhancements, covering core operating system components as well as included applications and developer tools. Leopard introduces a significantly revised desktop, with a redesigned Dock, Stacks, a semitransparent menu bar, and an updated Finder that incorporates the Cover Flow visual navigation interface first seen in iTunes. Other notable features include support for writing 64-bit graphical user interface applications, an automated backup utility called Time Machine, support for Spotlight searches across multiple machines, and the inclusion of Front Row and Photo Booth, which were previously included with only some Mac models. Apple missed Mac OS X v10.5’s release time frame as originally announced by Apple’s CEO Steve Jobs. When first discussed in June 2005, Jobs had stated that Apple intended to release Leopard at the end of 2006 or early 2007. A year later, this was amended to Spring 2007; however on 12 April 2007, Apple issued a statement that its release would be delayed until October 2007 because of the development of the iPhone.

New and changed features

End-user features

Apple advertises that Mac OS X v10.5 Leopard has 300+ new features, including:

A new improved Automator, with easy starting points to easily start a workflow. It also can quickly create or edit workflows with new interface improvements. Now it can use a new action called "Watch Me Do" that lets you record a user action (like pressing a button or controlling an application without built-in Automator support) and replay as an action in a workflow. It can create more useful Automator workflows with actions for RSS feeds, iSight camera video snapshots, PDF manipulation, and much more. Back to My Mac, a feature for MobileMe users that allows users to access files on their home computer while away from home via the internet. Boot Camp, a software assistant allowing for the installation of other operating systems, such as Windows XP (SP2 or later) or Windows Vista, on a separate partition (or separate internal drive) on Intel-based Macs. Dashboard enhancements, including Web Clip, a feature that allows users to turn a part of any Web page displayed in Safari into a live Dashboard widget, and Dashcode to help developers code widgets. New Desktop, comprises a redesigned 3-D dock with a new grouping feature called Stacks, which displays files in either a "fan" style, "grid" style, or (since 10.5.2) a "list" style.

The Dock, showing a Stack viewed as a "Fan" (left) and a "Grid" (right) Dictionary can now search Wikipedia, and a dictionary of Apple terminology as well. Also included is the Japanese-language dictionary Daijisen, Progressive E-J and Progressive J-E dictionaries, and the 25000-word thesaurus "Tsukaikata no Wakaru Ruigo Reikai Jiten

" (使い方の分かる類語例解辞典

?), all of which are provided by the Japanese publisher Shogakukan.[9][10] A redesigned Finder, with features similar to those seen in iTunes 7, including Cover Flow and a Source list-like sidebar. Front Row has been reworked to closely resemble the interface of the original Apple TV. iCal calendar sharing and group scheduling as well as syncing event invitations from Mail.[11] The icon also reflects the current date even when the application is not running. In previous versions of Mac OS X, the icon would show 17 July any time the application was not running but the current date when the application was running. iChat enhancements, including multiple logins, invisibility, animated icons, and tabbed chats, similar to features present in Pidgin, Adium and the iChat plugin Chax; iChat Theater, allowing users to incorporate images from iPhoto, presentations from Keynote, videos from QuickTime, and other Quick Look features into video chats; and Backdrops, which are similar to chroma keys, but use a real-time difference matte technique which does not require a green or blue screen. iChat also implements screen sharing, a feature previously available with Apple Remote Desktop. Mail enhancements including the additions of RSS feeds, Stationery, Notes, and to-dos. To-dos use a system-wide service that is available to all applications. Network file sharing improvements include more granular control over permissions, consolidation of AFP, FTP and SMB sharing into one control panel, and the ability to share individual folders, a feature that had not been available since Mac OS 9. Parental controls now include the ability to place restrictions on use of the Internet and to set parental controls from anywhere using remote setup. Photo Booth enhancements, including video recording with real-time filters and blue/green-screen technology. Podcast Capture, an application allowing users to record and distribute podcasts. It requires access to a computer running Mac OS X Server with Podcast Producer. Preview adds support for annotation, graphics, extraction, search, markup, Instant Alpha and size adjustment tools. Quick Look, a framework allowing documents to be viewed without opening them in an external application and can preview it in full screen.

The Finder, showing files in Cover Flow View and viewing a file using Quick Look Safari 3, which includes Web Clip. Spaces, an implementation of virtual desktops (individually called "Spaces"), allows multiple desktops per user, with certain applications and windows in each desktop. Users can organize certain Spaces for certain applications (e.g., one for work-related tasks and one for entertainment) and switch between them. Exposé works inside Spaces, allowing the user to see at a glance all desktops on one screen.) Users can create and control up to 16 spaces, and applications can be switched between each one, creating a very large workspace. Spotlight incorporates additional search capabilities such as Boolean operators, as well as the ability to search other computers (with permissions). Time Machine, an automated backup utility which allows the user to restore files that have been deleted or replaced by another version of a file. Universal Access enhancements: significant improvements to applications including VoiceOver, along with increased support for Braille, closed captioning and a new high‐quality Speech synthesis voice. Russian language support, bringing the total to 18 languages. Leopard removes support for Classic applications. Classic will not run natively on Intel-based Macs in any case. Developer technologies Native support by many libraries and frameworks for 64-bit applications, allowing 64-bit Cocoa applications. Existing 32-bit applications using those libraries and frameworks should continue to run without the need for emulation or translation. Leopard offers the Objective-C 2.0 runtime, which includes new features such as garbage collection. Xcode 3.0 supports the updated language and was itself rewritten with it. A new framework, Core Animation, allows a developer to create complex animations while specifying only a "start" and a "goal" space. The main goal of Core Animation is to enable the creation of complex animations with small amounts of program code. Apple integrates DTrace from the OpenSolaris project and adds a graphical interface called Instruments (previously Xray). DTrace provides tools that users, administrators and developers can use to tune the performance of the operating system and the applications that run on it. The new Scripting Bridge allows programmers to use Python and Ruby to interface with the Cocoa frameworks. Ruby on Rails is included in the default install. Leopard’s OpenGL stack has been updated to version 2.1, and uses LLVM to increase its vertex processing speed. Apple has been working to get LLVM integrated into GCC; LLVM’s use within other operating system facilities has not been announced. The Graphics and Media State of the Union address confirmed many other features are possible because of Core Animation, such as live desktops, improvements to Quartz Composer with custom patches, a new PDF Kit for developers, and improvements to QuickTime APIs. The FSEvents framework allows applications to register for notifications of changes to a given directory tree. Leopard includes a read-only implementation of the ZFS file system. In mid-December 2006 a pre-release version of Leopard appeared to include support for Sun’s ZFS. Jonathan Schwartz, CEO and President of Sun Microsystems, boasted on 6 June 2007 that ZFS has become "the file system" for Leopard. However, the senior project marketing director for Mac OS X stated on 11 June 2007 that the existing HFS+, not ZFS, will be used in Leopard. Apple later clarified that a read-only version of ZFS would be included. Leopard includes drivers for UDF 2.5, necessary for reading HD DVD and Blu-ray discs using third-party drives, but the included DVD Player software can only play HD DVD disks authored by DVD Studio Pro. Leopard includes a framework implementing latent semantic mapping for classifying (e.g. textual) data. Leopard is the first operating system with open source BSD code to be certified as fully UNIX compliant. Certification means that software following the Single UNIX Specification can be compiled and run on Leopard without the need for any code modification. The certification only applies to Leopard when run on Intel processors. Security enhancements New security features intend to provide better internal resiliency to successful attacks, in addition to preventing attacks from being successful in the first place. Library Randomization Leopard implements library randomization, which randomizes the locations of some libraries in memory. Vulnerabilities that corrupt program memory often rely on known addresses for these library routines, which allow injected code to launch processes or change files. Library randomization is presumably a stepping-stone to a more complete implementation of address space layout randomization at a later date.

Application Layer Firewall

Leopard ships with two firewall engines: the original BSD IPFW, which was present in earlier releases of Mac OS X, and the new Leopard Application Layer Firewall. Unlike IPFW, which intercepts and filters IP datagrams before the kernel performs significant processing, the Application Layer Firewall operates at the socket layer, bound to individual processes. The Application Layer Firewall can therefore make filtering decisions on a per-application basis. Of the two-firewall engines, only the Application Layer Firewall is fully exposed in the Leopard user interface. The new firewall offers less control over individual packet decisions (users can decide to allow or deny connections system wide or to individual applications, but must use IPFW to set fine-grained TCP/IP header level policies). It also makes several policy exceptions for system processes: neither mDNSResponder nor programs running with superuser privileges are filtered. Sandboxes Leopard includes kernel-level support for role-based access control (RBAC). RBAC is intended to prevent, for example, an application like Mail from editing the password database. Application Signing Leopard provides a framework to use public key signatures for code signing to verify, in some circumstances, that code has not been tampered with. Signatures can also be used to ensure that one program replacing another is truly an "update", and carry any special security privileges across to the new version. This reduces the number of user security prompts, and the likelihood of the user being trained to simply clicking "OK" to everything. Secure Guest Account Guests can be given access to a Leopard system with an account that the system erases and resets at logout. System requirements Apple states the following basic Leopard system requirements, although, for some specific applications and actions (such as iChat backdrops) an Intel processor is required: Processor must be any Intel, PowerPC G5 or G4 (867 MHz and faster) DVD drive (for installation of the operating system) At least 512 MB of RAM (additional RAM (1 GB) is recommended for development purposes) At least 9 GB of disk space available. Leopard’s retail version was not released in separate versions for each type of processor, but instead consisted of one universal release that could run on both PowerPC and Intel processors. Leopard drops support for slower G4 and all G3 processors. Because all new Macs use Intel processors, the versions of Leopard shipped with them are Intel only.

Usage on unsupported hardware

Some ways of running Leopard on certain unsupported hardware, primarily slower PowerPC G4 computers, have been discovered. A common way is use of the program LeopardAssist, which is a bootloader similar in some respects to XPostFacto (used for installing earlier releases of Mac OS X on unsupported G3 and pre-G3 Macs) that uses the Mac’s Open Firmware to tell Leopard that the machine does have a CPU meeting the 867 MHz minimum requirement that the Installer checks for before installation is allowed to commence, when in reality the CPU is slower. Currently, LeopardAssist only runs on slower G4s and many people have installed Leopard successfully on these older machines. Users who have access to supported hardware have installed Leopard on the supported machine then simply moved the hard drive to the unsupported machine. Leopard is only compiled for AltiVec-enabled PowerPC processors (G4 and G5) though, as well as Intel, so both of these methods will only work on Macs with G4 or later CPUs. While some of the earlier beta releases were made to run on some later G3 machines (mostly later 800–1000 MHz iBooks), no success with the retail version has been reported on G3 Macs except for some later iMacs and "Pismo" PowerBook G3s with G4 processor upgrades installed. Until recently it appeared that the only G3 Macs on which Leopard could be run were those with an aftermarket G4 processor and an AGP graphics card, as failures with the OS partially booting before crashing were reported on older Macs such as the original tray-loading iMacs and the Beige and Blue & White Power Mac G3 (all with G4 upgrades as Leopard will not even begin to load without one) whereas it would boot fine on newer Macs where the Installer restriction had been circumvented. However, more recently it has been reported that with some more work and use of kernel extensions from XPostFacto, Tiger and beta builds of Leopard, the OS can be made to run on G4-upgraded Macs as old as the Beige G3. While the basic Leopard system can be used on most G4 or later Macs, some functionality such as Front Row or Time Machine fails to work without a Quartz Extreme-capable graphics card, which many of the earlier G4s did not include in their factory specification. Also, users with non-Apple PC’s can install Leopard on their computers, through the OSx86 project. A variety of installation processes can be used, the most common being to use a modified Darwin bootloader designed to trick the retail, or vanilla, operating system into thinking that it is running on an EFI-based Mac. A hardware device capable of being attached to a PC’s motherboard has also been released, EFI-X, enabling much the same function as the modified Darwin bootloader.

Packaging

The retail packaging for Leopard is significantly smaller than that of previous versions of Mac OS X (although later copies of Tiger also came in the new smaller box). It also sports a lenticular cover, making the X appear to float above a purple galaxy, somewhat resembling the default Leopard desktop wallpaper.

Compatibility

After Leopard’s release, there were widely-reported incidents of new Leopard installs hanging during boot on the blue screen that appears just before the login process starts.[citation needed] Apple attributed these problems to an outdated version of an unsupported add-on extension called Application Enhancer (APE), from Unsanity which is incompatible with Leopard; unbeknownst to many users, APE had been installed silently on many Macs by Logitech as part of their mouse drivers. However, only the users who didn’t have the latest version of APE installed (2.0.3 at that time) were affected. Apple published a knowledge base article on how to solve this problem.

Criticism

Security features in Leopard were criticized as weak or ineffective, with the research group Heise Security that the Leopard installer downgraded firewall protection and exposed services to attack even when the firewall was re-enabled. Several researchers noted that the Library Randomization feature added to Leopard was ineffective compared to mature implementations on other platforms, and that the new "secure Guest account" could be abused by Guests to retain access to the system even after the Leopard log out process erased their home directory.

Though generally lauded in the press as a step forward for data recovery, Time Machine was criticized in multiple publications for lacking the capabilities of third-party backup software. Analyzing the feature for TidBITS, Joe Kissell pointed out that Time Machine does not create bootable copies of backed-up volumes, does not back up to AirPort Disk hard drives and will not back up FileVault encrypted home directories until the user logs out, concluding that the feature is "pretty good at what it does" but he will only use it as part of a "broader backup strategy". One of these issues has been resolved, however; On 19 March 2008, updates were released for AirPort and Time Machine, allowing for Time Machine to use a USB hard disk which has been connected to an AirPort Extreme Base Station.

R.L. Prior, on the ThinkMac blog, criticized a number of changes to Leopard’s user interface, including the transparent menu bar, the shelf-like Dock and the new folder icons. Decreased transparency of the menu bar, along with the ability to disable the menu bar transparency were added with the 10.5.2 release on 11 February 2008.

The auto-switching feature in spaces annoyed some of its users. Apple added a new preference in 10.5.2 which disabled this feature, but there were still bugs found while switching windows. In 10.5.3, this problem was addressed and was supposedly no longer an issue.