Close encounters of the CADR kind

Noel Chiappa jnc at
Mon Jan 16 14:36:36 CST 2017

    > From: Lars Brinkhoff

    >> like the Chess Machine, it was a special purpose CPU hung off the AI
    >> PDP-10. (Or maybe the Chess Machine was attached to MC? I forget.)

It's also possible that it was connected to AI at one point, and MC later on.
I have this bit set about being told that when it was competing in some chess
tournament, they disabled logins (and I have this bit set that it was on MC,
since it was the fastest machine) so that they'd get the best performance.
But it's all foggy at this point.

I'm pretty sure that CHEOPS and CONS were in the same room (not in the raised
floor area of the 9th floor) at one point, but again, don't rely too heavily
on that memory. And I think the first CADR was in there too, while they were
debugging it - I remember one evening watching over Dave Moon's shoulder in
the room next door, while they tried to get the first CADR running.

    > Would that Chess Machine be the one called CHEOPS?

Yes, that's it.

    > I'll take this opportutity to ask what CAIOS was? It seems intimately
    > related to Chaosnet. Maybe an earlier name for Chaos

Yeah, that rings a bell, vaguely.

Where did you find a referece too it? I just did a Google search, no luck.


More information about the cctalk mailing list