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    IBM CP-40 - Wikipedia

    https://en.wikipedia.org/wiki/IBM_CP-40

    CP-40 was a research precursor to CP-67, which in turn was part of IBM's then-revolutionary CP[-67]/CMS – a virtual machine/virtual memory time-sharing operating system for the IBM System/360 Model 67, and the parent of IBM's VM family. CP-40 ran multiple instances of client operating systems … See more

    Project goals

    CP-40 was a one-off research system. Its declared goals were:
    • Provide research input to the System/360 Model 67 team working in Poughkeepsie, who were breaking new ground with the as-yet-unproven … See more

    CMS under CP-40

    CMS was first built in 1964 at CSC to run as a 'client' operating system under CP-40. The CMS project leader was John Harmon. Although any S/360 operating system could be run … See more

    See also

    • CP[-67]/CMS: The widely used successor to CP-40, and the precursor to IBM's VM systems
    • Cambridge Scientific Center, where CP-40 and See more

    Further reading

    • Adair, R. J.; Bayles, R. U.; Comeau, L. W.; Creasy, R. J. (1966). A virtual machine system for the 360/40. Cambridge, MA. IBM Cambridge Scientific Center report 320-2007., cited in Varian (1997) and Creasy (1981)
    • Comeau, L. W. (September 1982). See more

    Features

    CP-40 was the first operating system that implemented complete virtualization, i.e. it provided a virtual machine environment supporting all aspects of its target computer system (a … See more

    Hardware platform

    A Model 67 was not available for building CP-40, so a custom virtual memory device based on associative memory (the "CAT box" ) was designed … See more

    Historical notes

    The following notes provide brief quotes, primarily from Pugh, Varian, and Creasy [see references], illustrating the development context of CP-40. Direct quotes rather than paraphrases are provided here, because the authors' perspectives color … See more

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  2. IBM CP-40 — Wikipédia

    https://fr.wikipedia.org/wiki/IBM_CP-40

    WebModèle:History of IBM mainframe operating systemsCP-40 était un prototype de CP-67, lui-même partie du système, alors révolutionnaire, IBM CP[-67]/CMS ; un système …

  3. Talk:IBM CP-40 - Wikipedia

    https://en.wikipedia.org/wiki/Talk:IBM_CP-40
    • I am currently revising/creating a series of articles related to the early days of CP/CMS. This involves the various systems referenced by the family tree at the end of this article, plus entries on Cambridge Scientific Center, Lincoln Laboratory, Type-III product, etc. Kindly bear with me while I get the various pages in synch. (I was doing some o...
    See more on en.wikipedia.org

  4. IBM CP-40 - HandWiki

    https://handwiki.org/wiki/IBM_CP-40

    WebCP-40 was a research precursor to CP-67, which in turn was part of IBM's then-revolutionary CP[-67]/CMS – a virtual machine/virtual memory time-sharing operating …

  5. IBM CP-40 - wblog.wiki

    https://wblog.wiki/en/IBM_CP-40

    WebCP-40 was a research precursor to CP-67, which in turn was part of IBM's then-revolutionary CP[-67]/CMS – a virtual machine/virtual memory time-sharing operating …

  6. IBM CP-40 - Wikipedia @ WordDisk

    https://worddisk.com/wiki/IBM_CP-40

    WebCP-40 was a research precursor to CP-67, which in turn was part of IBM's then-revolutionary CP[-67]/CMS – a virtual machine/virtual memory time-sharing operating …

  7. IBM CP-40 - Historical Notes - LiquiSearch

    https://www.liquisearch.com/ibm_cp-40/historical_notes

    WebA key design decision, made by Creasy and Comeau at the end of 1964, was to base CP-40 not just on virtual memory but on virtual machines (at first called pseudo-machines, until …

  8. IBM CP-40 - Infogalactic: the planetary knowledge core

    https://infogalactic.com/info/IBM_CP-40

    WebCP-40 was a research precursor to CP-67, which in turn was part of IBM's then-revolutionary CP[-67]/CMS – a virtual machine/virtual memory time-sharing operating …

  9. About: IBM CP-40 - dbpedia.org

    https://dbpedia.org/page/IBM_CP-40

    WebCP-40 was a research precursor to CP-67, which in turn was part of IBM's then-revolutionary CP[-67]/CMS – a virtual machine/virtual memory time-sharing operating …

  10. IBM CP-40 - IBM CP-40 - abcdef.wiki

    https://hu.abcdef.wiki/wiki/IBM_CP-40

    WebA CP-40 volt az első operációs rendszer, amely megvalósította a teljes virtualizációt, azaz virtuális gépi környezetet biztosított a célszámítógépes rendszer minden aspektusát …

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