Windows

Windows, or Microsoft Windows, is a family of operating systems that has dominated desktop and laptop computers for many years, though its dominance of the overall computing market is waning due to the rise of other devices such as smartphones and tablets which usually use other systems. Starting out as a graphical environment under MS-DOS (versions through 3.x had to be run after booting the command-line-based DOS system), it became a system a PC booted directly into as of Windows 95, and there have been a number of different versions since.

Versions

 * Windows
 * Windows 3.x
 * Windows 95
 * Windows 98
 * Windows NT
 * Windows 2000
 * Windows XP
 * Windows Vista
 * Windows 7
 * Windows 8