Definitions for ctss

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The New Hacker's Dictionary

  1. CTSS

    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


  1. Compatible Time-Sharing System

    The Compatible Time-Sharing System, was one of the first time-sharing operating systems; it was developed at MIT's Computation Center. CTSS was first demonstrated in 1961, and was operated at MIT until 1973. During part of this time, MIT's Project MAC had a second copy of CTSS, but the system did not spread beyond two sites. CTSS was described in a paper presented at the 1962 Spring Joint Computer Conference, and greatly influenced the design of other early time-sharing systems.


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