Main article: List of features removed in Windows 8 Aside from the removal of the Start menu, several notable features have been removed in Windows 8. Support for playing DVDs has been removed from Windows Media Player due to the cost of licensing the necessary decoders (especially for devices which do not include optical disc drives at all) and the prevalence of streaming services such as Netflix. For the same reasons, Windows Media Center will no longer be included by default on Windows 8 as well, but the software (which also includes support for DVD playback) can be added back through the paid "Pro Pack" (for the base version of Windows 8, which also upgrades the system to Windows 8 Pro) or "Media Center Pack" (for Windows 8 Pro) add-ons. Windows 8 will still support third- party DVD playback software. File History, the new backup feature of Windows 8 described above, replaces Backup and Restore, the former backup app, and Previous Versions, a component of Windows Explorer that saves previous versions of changed files. Backup and Restore is deprecated but will continue to work on preset schedule on computers that upgrade from Windows 7 to Windows 8.:76 Previous Versions no longer protects local files, although it is still available to access previous versions of shared files stored on a Windows Server computer.:74 Shadow Copy, the subsystem component based on which these worked, however, is still available for other software to use.:74 Hardware requirements PCs Minimum hardware requirements for Windows 8 Architecture IA-32 (32-bit) x86-64 (64-bit) Processor 1 GHz (with PAE, NX and SSE2 support) Memory (RAM) 1 GB 2 GB Graphics Card DirectX 9 graphics device with WDDM 1.0 or higher driver Storage 16 GB 20 GB The minimum system requirements for Windows 8 are slightly higher than those of Windows 7. Notably, Windows 8 now requires that a system's CPU support certain hardware features, specifically the PAE, NX bit, and SSE2. Windows Store apps require a screen resolution of 1024x768 or higher to run, while a screen resolution of 1366x768 or higher is required in order to use the snapping functionality for apps. To receive logo certification, Microsoft requires that an Intel-compatible system resume from standby in 2 seconds or less. Tablets and convertibles Microsoft released minimum hardware requirements for new tablet and convertible devices designed for Windows 8, and defined a convertible form factor as a standalone device that combines the PC, display and rechargeable power source with a mechanically attached keyboard and pointing device in a single chassis. A convertible can be transformed into a tablet where the attached input devices are hidden or removed leaving the display as the only input mechanism. Hardware certification requirements for Windows tablets Graphics Card DirectX 10 graphics device with WDDM 1.2 or higher driver Storage 10GB free space, after the out-of-box experience completes Standard 'Power', 'Rotation lock', 'Windows Key', 'Volume-up', 'Volume-down' buttons Touch screen supporting a minimum of 5-point digitizers and resolution of at least 1366x768. The physical dimensions of the display panel must match the Screen aspect ratio of the native resolution. The native resolution of the panel can be greater than 1366 (horizontally) and 768 (vertically). Minimum native color depth is 32-bits. Camera Minimum 720p Ambient light 1–30k lux capable with dynamic range of 5–60K sensor Accelerometer 3 axes with data rates at or above 50 Hz USB 2.0 At least one controller and exposed port. Connect Wi-Fi and Bluetooth 4.0 + LE (low energy) Speaker, microphone, magnetometer and gyroscope. If a mobile broadband device is integrated into a tablet or convertible system, Other then an assisted GPS radio is required. Devices supporting near field communication need to have visual marks to help users locate and use the proximity technology. The new button combination for Ctrl + Alt + Del is Windows Key + Power.
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