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NOS (operating system)

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Not to be confused with Network operating system.
NOS
DeveloperControl Data Corporation
Working stateHistoric
Initial release1970s
Marketing targetMainframe computers
PlatformsCDC 6000 series and successors
LicenseProprietary

NOS (Network Operating System) was an operating system with time-sharing capabilities, written by Control Data Corporation in the 1970s.[1]

NOS ran on the 60-bit CDC 6000 series of mainframe computers and their successors. NOS replaced the earlier CDC Kronos operating system of the 1970s. NOS was intended to be the sole operating system for all CDC machines, a fact CDC promoted heavily. NOS was replaced with NOS/VE on the 64-bit Cyber-180 systems in the mid-1980s.

Version 1 of NOS continued to be updated until about 1981; NOS version 2 was released early 1982.

See also

References

  1. ^ NOS Version 1 Reference manual, Volume 1 of 2, version 60435400J (10 August 1979), Control Data Corporation, scanned PDF, 15MB, at bitsavers.org
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