Q5046
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Windows 8 is a personal computer operating system made by Microsoft that came out in 2012. It matters because it was a major update to how Windows worked, introducing a new touch-friendly interface design that changed how millions of computer users interacted with their machines.
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Windows 8 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 1, 2012, made available for download via MSDN and TechNet on August 15, 2012, and generally released for retail on October 26, 2012.
Windows 8 introduced major changes to the operating system's platform and user interface with the intention to improve its user experience on tablets, where Windows competed with mobile operating systems such as Android and iOS. In particular, these changes included a touch-optimized Windows shell and start screen based on Microsoft's Metro design language, integration with online services, the Windows Store, and a new keyboard shortcut for screenshots. Many of these features were adapted from Windows Phone, and the development of Windows 8 closely paralleled that of Windows Phone 8. Windows 8 also added support for USB 3.0, Advanced Format, near-field communication, and cloud computing, as well as a new lock screen with clock and notifications. Additional security features—including built-in antivirus software, integration with Microsoft SmartScreen phishing filtering, and support for Secure Boot on supported devices—were introduced. It was the first Windows version to support ARM architecture under the Windows RT branding. CPUs without PAE, SSE2 and NX are not supported in this version.