Windows 3.1x
Software
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Windows 3.1 is a major release of Microsoft Windows. It was released to manufacturing on April 6, 1992, as a successor to Windows 3.0.
Like its predecessors, the Windows 3.1 series ran as a shell on top of MS-DOS. Windows 3.1 introduced the... Wikipedia
Initial release date: 1992
Year: April 6, 1992
Developer: Microsoft
Latest release: 3.11 / November 8, 1993; 30 years ago
License: Commercial software
Released to manufacturing: April 6, 1992; 32 years ago
Source model: Closed source