Personal Computer Museum, Canada's Videogame Museum

OS/2 v1.2 Standard Edition

OS/2 v1.2 Standard Edition
OS/2 v1.2 Standard Edition

SystemOS/2
Floppy (3.5")8

IBM

OS/2

Release Date: 1/1/1989
Manufacturer: IBM
 
OS/2 is a computer operating system, initially created by Microsoft and IBM, then later developed by IBM exclusively. The name stands for "Operating System/2," because it was introduced as part of the same generation change release as IBM's "Personal System/2 (PS/2)" line of second-generation personal computers. OS/2 is no longer marketed by IBM, and IBM standard support for OS/2 was discontinued on 31 December 2006. Currently, Serenity Systems sells OS/2 under the brand name eComStation.

OS/2 was intended as a protected mode successor of PC-DOS. Notably, basic system calls were modeled after MS-DOS calls; their names even started with "Dos" and it was possible to create "Family Mode" applications: text mode applications that could work on both systems. Because of this heritage, OS/2 shares similarities with Unix, Xenix, and Windows in many ways.

This version is 2.1, and it's a special edition for use with Windows version 3.1.

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