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The CDC 1604 Wikipedia page mentions a "Co-Op Monitor (developed by the users' organization)" used as the operating system. Has a contemporary description of its capabilities, e.g. a user manual, survived?

Unfortunately, bitsavers.org has nothing on CDC 1604 in the software section, and the documentation section has only CDC publications.

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  • computerhistory.org/collections/catalog/102636800 But it isn’t available to download there.
    – Jon Custer
    Mar 20, 2023 at 23:32
  • @JonCuster Thank you; I'll attempt to inquire, but by the title it looks like just a specification document rather than a design or implementation document.
    – Leo B.
    Mar 21, 2023 at 1:14
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    'File-box 2, 49' in the U. of Minnesota archives. Alas, not online either.
    – dave
    Mar 21, 2023 at 2:12
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    Not quite what you're looking for, but this Oak Ridge Algol compiler manual does show how programs got run under the monitor. It looks like the usual model of sequential batch OS.
    – dave
    Mar 21, 2023 at 2:21
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    I think that's just documentation convention; it is described as a 7-9 punch. I've used a CDC system where 'control cards' were specific non-graphic hole combinations in column 1, different combinations for end-of-file, end-of-job, etc.
    – dave
    Mar 21, 2023 at 12:50

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