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{{#invoke:redirect hatnote|redirect}} {{ safesubst:#invoke:Unsubst||date=__DATE__|$B= {{#invoke:Infobox|infobox}} }} OS/2 is a series of computer operating systems, 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. The first version of OS/2 was released in December 1987 and newer versions were released until December 2001.

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.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Because of this heritage, OS/2 shares similarities with Unix, Xenix, and Windows NT in many ways.

OS/2 is no longer marketed by IBM, and IBM standard support for OS/2 was discontinued on 31 December 2006.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It has been since maintained with relatively few new features under the name of eComStation.

OS/2 sections
Intro  Development history  Technology  Historical uses  IBM products utilizing OS/2  See also  References  Further reading  External links  

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