Windows 8 is a version of Microsoft Windows (an operating system developed by Microsoft) for use on personal computers, including home and businessdesktops, laptops, tablets, and home theater PCs. Development of Windows 8 started before the release of its predecessor, Windows 7, in 2009. Its existence was first announced at CES 2011, and followed by the release of three pre-release versions from September 2011 to May 2012. The operating system wasreleased to manufacturing on August 1, 2012, and was released for general availability on October 26, 2012.[3] Windows 8 uses version 6.2 of the Windows NT kernel.
Windows 8 introduces significant changes to the operating system's platform, primarily focused towards improving its user experience on mobile devices such as tablets to better compete with other mobile operating systems like Androidand Apple's iOS.[4] Windows 8 features a new touch user interface and shellbased on Microsoft's "Metro" design language, featuring a new Start screen with a grid of dynamically updating tiles that represent applications. The Start screen replaces the "Start menu" of earlier Windows versions. There is a new appplatform with an emphasis on touchscreen input, and the new Windows Store to obtain and/or purchase applications to run on the operating system.
In addition, Windows 8 takes advantage of new or emerging technologies likeUSB 3.0, 4Kn Advanced Format, near field communications, cloud computing, and the low-power ARM architecture. It includes new security features such as built-in antivirus capabilities, a new installation process optimized for digital distribution, and support for secure boot (a UEFI feature which allows operating systems to be digitally signed to prevent malware from altering the boot process). Synchronization of certain apps and settings between multiple devices is supported.
Windows 8 was released to mixed reception. Although reaction towards its performance improvements, security enhancements, and improved support for touchscreen devices was positive, the new user interface of the operating system has been widely criticized for being potentially confusing and difficult to learn (especially when used with a keyboard and mouse instead of a touchscreen). Despite these shortcomings, 60 million Windows 8 licenses have been sold through January 2013. This includes upgrades and sales to OEMs for new PCs.[5]
A system update code-named "Windows Blue" is scheduled for later in 2013, and according to Microsoft will change "key aspects" of how Windows 8 is used.[6] The Financial Times called this "one of the most prominent admissions of failure for a new mass-market consumer product since Coca-Cola’s New Coke fiasco nearly 30 years ago.
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