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Timeline of operating systems

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This is an old revision of this page, as edited by 67.75.227.98 (talk) at 13:41, 17 June 2003. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

This article presents a timeline of events in the history of computer operating systems from 1950 to 2003. For a narrative explaining the overall developments, see the related History of computing.

1965

Tape Operating System (TOS)

1969

Unix

1970

DOS/BATCH 11 (PDP-11)

1978

VMS

1981

MS-DOS

1995

OS/390

2001

Z/OS

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