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Operating system
Cray Time Sharing System (CTSS)
Developer
Los Alamos Scientific Laboratory, Lawrence Livermore Laboratory
Working state
Historic
Initial release
1978; 46 years ago (1978)
Marketing target
Supercomputers
Available in
English
Platforms
Cray-1, Cray X-MP line
License
Proprietary
Preceded by
Livermore Time Sharing System
The Cray Time Sharing System, also known in the Cray user community as CTSS, was developed as an operating system for the Cray-1 or Cray X-MP line of supercomputers in 1978.[1] CTSS was developed by the Los Alamos Scientific Laboratory (LASL now LANL) in conjunction with the Lawrence Livermore Laboratory (LLL now LLNL). CTSS was popular with Cray sites in the United States Department of Energy (DOE), but was used by several other Cray sites, such as the San Diego Supercomputing Center.[2]
^"The NMFECC Cray Time-Sharing System" (PDF). NMFECC at LLNL. Retrieved 7 March 2023.
^Supercomputer Centers
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