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is the current release of the Windows operating system,produced by MS for use on personal computers, including home and business desktops, laptops, tablets etc.   The operating system was released to manufacturing on August 1, 2012, and was released for general availablity today on October 26, 2012.
Windows 8 introduces significant changes to the operating system's platform, primarily focused towards improving its experience on mobile devices such as tablets to rival other
mobile operating systems  (such as Android and iOS)^.
Windows 8 also introduces a new shell and user interface based off Microsoft's Metro design language, featuring a new Start screen with a grid of dynamically updating tiles to represent applications, a new application platform with an emphasis on toucscreen input, the new Windows Store to obtain and purchase applications for the system, and the ability to synchronize programs and settings between multiple devices.