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 Next Generation (CNG). CNG is an extensible, user mode and kernel mode API that includes support for Elliptic curve cryptography and a number of newer algorithms that are part of the National Security Agency (NSA) Suite B. It also integrates with the smart card subsystem by including a Base CSP module which encapsulates the smart card API so that developers do not have to write complex CSPs. Technical features new to Windows Vista Windows Vista (formerly codenamed Windows "Longhorn") has many significant new features compared with previous Microsoft Windows versions, covering most aspects of the operating system. In addition to