Windows 7 is the latest version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs.
Windows 7 was released to manufacturing (RTM) on July 22, 2009, with general retail availability set for October 22, 2009, less than three years after the release of its predecessor, Windows Vista.
System requirements
-CPU: 1.5 GHz 32/64-bit
-VIDEO: with support for DirectX 9 and 128 MB of memory
(for the theme Aero)
-RAM: 512 MB or more
-HDD: 12 GB
(4 GB Space)