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Tuesday, 31 March 2009

SearchEngineOptimation

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

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.

Wednesday, 25 March 2009

Mandriva Linux 2009

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 Gaël 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

Yellow Dog Linux

Company / 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 ‘Pyxis’ 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 ‘Phoenix,’ 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 ‘Pyxis,’ 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 “the only Linux distribution to include by default Cell SDK v3.0.�[citation needed] Yellow Dog Linux Version 6.0 ‘Pyxis’ 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 ‘out of the box’ for Apple hardware, e.g. built-in support for backlit keyboards, power management, and trackpads on Apple iBooks and PowerBooks (Apple’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 (Apple’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 Apple’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.

Tuesday, 24 March 2009

Conficker


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.

Monday, 23 March 2009

Windows 7














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

Friday, 20 March 2009

Nokia 6600

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

Thursday, 19 March 2009

Intel Core i7

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


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.

www.wikipedia.org