Operating system Chromium OS. Microsoft Windows is a family of proprietary operating systems designed by Microsoft Corporation and primarily targeted to Intel architecture based computers, with an estimated 88.9 percent total usage share on Web connected computers. The latest version is Windows 10. In 2011, Windows 7 overtook Windows XP as most common version in use. Microsoft Windows was first released in 1985, as an operating environment running on top of MS-DOS, which was the standard operating system shipped on most Intel architecture personal computers at the time. In 1995, Windows 95 was released which only used MS-DOS as a bootstrap. For
Technical features new to Windows Vista firmware technologies such as the Unified Extensible Firmware Interface. The new architecture introduces a firmware-independent data store and is backward compatible with previous versions of the Windows operating system. Windows Vista introduces an improved driver model, Windows Driver Foundation which is an opt-in framework to replace the older Windows Driver Model. It includes: Windows Vista includes the following changes and enhancements in processor power management: Windows Vista is the first client version of Windows to ship with the .NET Framework. Specifically, it includes .NET Framework 2.0 and .NET Framework 3.0 (previously known as WinFX) but not version 1.0 or 1.1.