Windows 7 is the latest public release version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, and media center PCs. Windows 7, along with Windows Server 2008 R2, was released less than three years after the release of its predecessor Windows Vista on Oct 22, 2009.
Aimed to be fully compatible with applications and hardware which are compatible with Windows Vista, Windows 7 was intended to be more focused regarding new features instead of introducing quite some new features like its predecessors. Main features added-in are multi-touch support, Superbar which is redesigned from Windows Shell with a new taskbar, HomeGroup introduced as a home networking system and performance improvements. Some applications within previous releases like Windows Mail, Windows Calendar, Windows Photo Gallery and Movie Maker are removed from Windows 7, but most of them are offered in the free Windows Live Essentials suite separately.
Windows 7 is available in six different editions: Windows 7 Starter, Windows 7 Home Basic, Windows 7 Home Premium, Windows 7 Professional, Windows 7 Enterprise and Windows 7 Ultimate. Minimum hardware requirements for Windows 7:
32-bit architecture: Processor: 1 GHz 32-bit processor; Memory (RAM): 1 GB of RAM; Graphics Card: DirectX 9 graphics processor with WDDM driver model 1.0 (For Aero); HDD free space: 16 GB of available disk space; Optical drive: DVD drives (only to install from DVD/CD Media).
64-bit architecture: Processor: 1 GHz 64-bit processor; Memory (RAM): 2 GB of RAM; Graphics Card: DirectX 9 graphics processor with WDDM driver model 1.0 (For Aero); HDD free space: 20 GB of available disk space; Optical drive: DVD drives (only to install from DVD/CD Media).
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