VM-CP

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Main article: VM (operating system)

VM-CP was the official name of the control program portion of VM/370, a re-implementation of CP/CMS for the IBM System/370. It was originally called CP-370. VM/370 was announced in 1972, when virtual memory was added to the System/370 series. A successor of this software is found in today's z/VM. See the article History of CP/CMS for details on the S/370 implementation.

CP/CMS family relationships:    → derivation    >> strong influence    > some influence/precedence
 CTSS 
> IBM M44/44X
>> CP-40/CMSCP[-67]/CMS  VM/370 → VM/XA versions → VM/ESAz/VM
VP/CSS
> TSS/360
> OS/MVT-TSOOS/VS2-TSOMVS-TSOz/OS-TSO
>> MULTICS and most other time-sharing platforms

This simplified framework provides links to major time-sharing systems that influenced or were influenced by CP/CMS. Many other important systems emerged during this period; cf. Manchester/Ferranti Atlas, Burroughs, Control Data Corporation, DEC, and Honeywell for examples. Also see time-sharing system evolution.

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