Psychic? Psychiatric?

On June 20, 2026 10:20:41 PM Howard Rifkind <[email protected]> wrote:

It’s been a very long time in the mists of my memory that someone mentioned cp/67 cms. I think it ran on a 360/40 at New York Psychic Center.
Sent from my iPhone

On Jun 20, 2026, at 07:37, Jay Maynard <[email protected]> wrote:

CP/67 won't run on a 370. The virtual memory implementation is different
enough to keep it from running. I don't know if CP/67's CMS will run on a
bare 370, though it will run under VM/370, so maybe...

If it'll run on a bare 370, it should run on a P/370.

On Fri, Jun 19, 2026 at 10:14 PM Farley, Peter <
[email protected]> wrote:

Just out of pure curiosity, I wonder if there are any surviving copies of
that “bare metal” CMS system and its documentation outside of IBM deep
archives (i.e., gathering dust at Iron Mountain).

It would be interesting to bring it up under S/370 emulation or on a
surviving P370 system if anyone has one that’s still operational, just to
see it work, but probably also somewhat frustrating without the supporting
documentation.

Peter

From: IBM Mainframe Discussion List <[email protected]> On Behalf
Of Mark S Waterbury
Sent: Friday, June 19, 2026 10:39 PM
To: [email protected]
Subject: Re: GC20-1757 - IBM Virtual Machine Facility/370 Features
Supplement


The original "CMS" (Cambridge Monitor System) of CP-67 could run on a
"bare" machine, and this was used to do the initial "SYSGEN" of CP-67, e.g.
to specify the I/O configuration etc. to install CP-67 on an IBM S/360
model 67.



By the time VM/370 became available in late 1972 or early 1973, the VM
version of "CMS" (Conversational Monitor System) could no longer run on any
"bare" machine as it relied on a number of CP services provided via the
DIAGnose instruction (aka. the "hypervisor call" in today's lingo.)

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