• Old OS/360 Control Block Chart

    From Peter Flass@Peter@Iron-Spring.com to alt.folklore.computers on Mon Sep 8 08:23:13 2025
    From Newsgroup: alt.folklore.computers

    Does anyone remember the old wall chart that showed "all" OS/360 control blocks and their interconnections? It looked like a diagram of neurons
    in a brain. Many sysprogs had this on their office wall, more as
    decoration than anything else.

    I happened to mention this elsewhere, but can't seem to find a copy. The "OS/360 Control Block Logic" manuals have pieces, cut down to fit an
    8.5x11" page, but the full chart was probably at least 24x18" or larger.
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  • From David LaRue@huey.dll@tampabay.rr.com to alt.folklore.computers on Tue Sep 9 08:54:23 2025
    From Newsgroup: alt.folklore.computers

    Peter Flass <Peter@Iron-Spring.com> wrote in news:109msd1$cgaj$1@dont- email.me:

    Does anyone remember the old wall chart that showed "all" OS/360 control blocks and their interconnections? It looked like a diagram of neurons
    in a brain. Many sysprogs had this on their office wall, more as
    decoration than anything else.

    I happened to mention this elsewhere, but can't seem to find a copy. The "OS/360 Control Block Logic" manuals have pieces, cut down to fit an
    8.5x11" page, but the full chart was probably at least 24x18" or larger.

    Hi Peter,

    I remember that poster!

    In college I had an instructer that kept "waxing poetic" about all the IBM
    360 and 370 design decisions he was in on when he was at IBM. Sadly most students didn't value such knowlege. However he was teaching computer engineering design technologies so it was relevant, even if it "wasn't going to be on the test".

    Thank you for that memory.
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  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.folklore.computers on Tue Sep 9 22:33:54 2025
    From Newsgroup: alt.folklore.computers

    On Tue, 9 Sep 2025 08:54:23 -0000 (UTC), David LaRue wrote:

    In college I had an instructer that kept "waxing poetic" about all the
    IBM 360 and 370 design decisions he was in on when he was at IBM. Sadly
    most students didn't value such knowlege.

    I had a similar one whose specialty was Univac mainframes -- which none of
    us had access to. This was a systems software course, talking about low-
    level details of OS interfacing, writing of utilities etc. There was
    perfectly good PDP-11/70 system that was widely used all across campus,
    that he could have used as an actual working example for setting practical exercises on; but he knew nothing of that.
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  • From Dan Espen@dan1espen@gmail.com to alt.folklore.computers on Wed Sep 10 19:38:48 2025
    From Newsgroup: alt.folklore.computers

    Peter Flass <Peter@Iron-Spring.com> writes:

    Does anyone remember the old wall chart that showed "all" OS/360
    control blocks and their interconnections? It looked like a diagram of neurons in a brain. Many sysprogs had this on their office wall, more
    as decoration than anything else.

    I happened to mention this elsewhere, but can't seem to find a
    copy. The "OS/360 Control Block Logic" manuals have pieces, cut down
    to fit an 8.5x11" page, but the full chart was probably at least
    24x18" or larger.

    Sure.

    I also remember a small handbook with the same information.
    --
    Dan Espen
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