Windows is an operating system for perssonal computers introduced by Microsoft in 1983, on which a number of well-known Windows variants are based. Windows was designed as a graphical user interface from Microsoft's Disk Operating System (DOS).
The first versions of Windows, such as Windows 3. 0 and Windows for Workgroups (WFW), emphasize this, as they can be seen as extensions of MS-DOS. Windows has evolved into a 32-bit multitasking operating system in its own right through subsequent Windows versions such as Windows NT, Windows 95 and 98, Windows 2000 and Windows XP. Besides there is a Windows version for handhelds and palmtops, the Windows CE.
In addition to the graphical interface, which takes place in several window displays, the operation with pointing devices such as the computer mouse and the simple data exchange between programs are typical Windows features.