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Universal Time-Sharing System ( XDS Sigma series).Remote Users of Shared Hardware (RUSH), a time-sharing system developed by Allen-Babcock for the 360/50.OS/360 (IBM's primary OS for its S/360 series) PCP and MFT ( shipped).THE multiprogramming system ( Technische Hogeschool Eindhoven) development.

Multics (MIT, GE, Bell Labs for the GE-645) ( announced).PDP-6 Monitor ( DEC) descendant renamed TOPS-10 in 1970.OS/360 (IBM's primary OS for its S/360 series) ( announced).KDF9 Timesharing Director ( English Electric) – an early, fully hardware secured, fully pre-emptive process switching, multi-programming operating system for KDF9 (originally announced in 1960).Dartmouth Time Sharing System ( Dartmouth College's DTSS for GE computers).Berkeley Timesharing System (for Scientific Data Systems' SDS 940).Titan Supervisor, early time-sharing system begun.JOSS, an interactive time-shared system that did not distinguish between operating system and language.CTSS becomes operational ( MIT's Compatible Time-Sharing System for the IBM 7094).AN/FSQ-32, another early time-sharing system begun.GCOS ( GE's General Comprehensive Operating System, originally GECOS, General Electric Comprehensive Operating Supervisor).Atlas Supervisor ( Manchester University) ( Atlas computer commissioned).MCP ( Burroughs Master Control Program).CTSS demonstration ( MIT's Compatible Time-Sharing System for the IBM 7094).SHARE Operating System (SOS), based on GM-NAA I/O.University of Michigan Executive System (UMES), for IBM 704, 709, and 7090.

BESYS ( Bell Labs), for IBM 704, later IBM 7090 and IBM 7094.Atlas Supervisor ( Manchester University) ( Atlas computer project start).GM-NAA I/O for IBM 704, based on General Motors Operating System.General Motors Operating System made for IBM 701.

MIT's Tape Director operating system made for UNIVAC 1103.

LEO I 'Lyons Electronic Office' was the commercial development of EDSAC computing platform, supported by British firm J.

For a narrative explaining the overall developments, see the History of operating systems. This article presents a timeline of events in the history of computer operating systems from 1951 to the current day.

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