ctss

4 definitions found

ctss - Free On-line Dictionary of Computing (26 May 2007) :

  Compatible Timesharing System
  CTSS
  
     <operating system> (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)
  

ctss - Jargon File (4.4.4, 14 Aug 2003) :

  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
  

ctss - V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006) :

  CTSS
         Compatible Time Sharing System (Unix, predecessor, OS, MIT)
         

  CTSS
         Cray TimeSharing System (OS, Cray, LLNL)