Naturally, Windows 1.0 necessitated a mouse, bringing that pointing device even more into the mainstream. While MS-DOS was just a single-tasked OS, Windows also used preemptive or cooperative ...

See Windows 2000. Windows NT (1993) - MS Versions 3.1, 3.5, 4.0 Windows NT 3.1 was a completely new 32-bit OS with separate client and server versions. Introduced during the reign of Windows 3.1 ...