The Livermore Time Sharing System, known as LTSS, was a supercomputer operating system originally developed by Lawrence Livermore Laboratories for Control Data Corporation's CDC 6600 and CDC 7600 supercomputers, first appearing in 1965. It was built to let the laboratory's scientific computing staff interact with these large machines through time-sharing rather than only through batch job submission, extending the sort of interactive access being explored elsewhere in the industry to Livermore's own high-performance CDC hardware. LTSS was distributed under a proprietary license and remained historic and discontinued as a standalone product, but its design was carried forward: it evolved into the Cray Time Sharing System and later into the Network Livermore Timesharing System, known as NLTSS.
Facts
Classification
LicenseProprietary (Closed Source) 1 FAQs
Why could the Livermore Time Sharing System be moved to later machines?
It was written in a higher level language by 1966.
By 1966 the Livermore team had decided to write the operating system for the CDC 6600 in a higher level language. A source on the system's history says this decision made it easier to transfer LTSS to new machines as they arrived, naming the CDC 7600, the CDC Star-100 and the Cray-1.
Connections
Sources
1. Livermore Time Sharing System (Wikipedia)
Infobox, Initial Release
1965
Infobox, License
Proprietary
Infobox: working state
Historic
- In Group: Research and Academic Operating Systems, developed by Lawrence Livermore Laboratories for CDC 6600 and CDC 7600 scientific computing
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