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ctss (foldoc) | Compatible Timesharing System
CTSS
(CTSS) One of the earliest (1963)
experiments in the design of interactive time-sharing
operating systems. CTSS was ancestral to Multics, Unix,
and ITS. It was developed at the MIT Computation Center
by a team led by Fernando J. Corbato. CTSS ran on a modified
IBM 7094 with a second 32K-word bank of memory, using two
2301 drums for swapping. Remote access was provided to up
to 30 users via an IBM 7750 communications controller
connected to dial-up modems.
The name ITS (Incompatible time-sharing System) was a hack
on CTSS, meant both as a joke and to express some basic
differences in philosophy about the way I/O services should be
presented to user programs.
(1997-01-29)
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ctss (jargon) | CTSS
/C·T·S·S/, n.
Compatible Time-Sharing System. An early (1963) experiment in the design of
interactive timesharing operating systems, ancestral to Multics, Unix,
and ITS. The name ITS (Incompatible Time-sharing System) was a hack on
CTSS, meant both as a joke and to express some basic differences in
philosophy about the way I/O services should be presented to user programs.
See timesharing
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ctss (vera) | CTSS
Compatible Time Sharing System (Unix, predecessor, OS, MIT)
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ctss (vera) | CTSS
Cray TimeSharing System (OS, Cray, LLNL)
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