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CP-67 was the control program portion of CP/CMS, a virtual machine operating system developed for the IBM System/360-67 by IBM's Cambridge Scientific Center. It was a reimplementation of their earlier research system CP-40, which ran on a one-off customized S/360-40. CP-67 was later reimplemented (again) as CP-370, which IBM released as VM/370 in 1972, when virtual memory was added to the System/370 series. Details on the development and circumstances of CP-67 can be found in the article History of CP/CMS.
Family Tree
| CP/CMS family relationships → derivation >> strong influence > some influence/precedence |
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| CTSS | |||
| > IBM M44/44X | |||
| >> CP-40/CMS → CP[-67]/CMS | → VM/370 → VM/XA versions → VM/ESA → z/VM | ||
| → VP/CSS | |||
| > TSS/360 | |||
| > TSO for OS/MVT → for OS/VS2 → for MVS → ... → for z/OS | |||
| >> 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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