COS was pretty much standard with the early S/360-30 users. I don't
remember if it came as a part of DOS or was an addon. I was a Jr.
Ass't. Probationery Trainee IBM Systems Engineer starting in 1967 and
from about 1968 when I was actually allowed to go to a customer account
almost, everyone
I don't know about the model 25, but we had a room full of mod 30s that had
a locally MODIFIED operating system (DOS) to support a program we called
COS or COSFG (for compatibility operating system), so we could emulate two
1401s (each an 8K 1401 in a 24K DOS paritition), one in the F1 partition
:
Subject:Re: OT: S/360 hardware related.
On: Tue, Nov 07, 2006 at 02:28:13PM -0500,Steve Gentry Wrote:
} On page 50 of the Nov. 2006 issue of SC Magazine is a picture that has
} been labeled a System/360.
} I've seen a lot of S/360 pictures and have even been in the presence of
} one
On 11/8/06, Rich Greenberg [EMAIL PROTECTED] wrote:
} http://home.insightbb.com/~hobbes/s360/ibm360mod20.jpg
Yup, thata a 360/20.
Was the provided radio (next to the phone) loud enough to hear with
the machine feeding cards in? Or was it used to hear an infinite loop
(how long did those take
Christmas carols.
Phil
-Original Message-
From: Rob van der Heij [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 08, 2006 11:18 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: OT: S/360 hardware related. (the picture)
On 11/8/06, Rich Greenberg [EMAIL PROTECTED] wrote:
} http
Well, that presses all my nostalgia buttons at once! The 360/22 was the
first computer I programmed or operated. We ran HASP RJE on it, and
then (once we got to a full 64K of core memory) ran DOS/360 release 26.2
- though at one point I did an OS/360 PCP install. You could watch it go
CPU-busy
Back around 1970 or so, I did a performance study on a S/360-30. At
that time, IBM published instruction times somewhere--don't remember
where. But I came up with a result that said that a mod 30 was an 18
kip machine.
Jim
Jeff Savit wrote:
Well, that presses all my nostalgia buttons at
On page 50 of the Nov. 2006 issue of SC Magazine is a picture that has been labeled a System/360.
I've seen a lot of S/360 pictures and have even been in the presence of one, but I don't ever recall
a S/360 looking like this. Obviously, there is a printer and a card reader in the picture. Is the
: OT: S/360 hardware
related.
"SC Magazine" "For Security
Professionals" Yes it is online, but I did not find the article. In
doing some additional searching, I think
it is a 360 model 20. I didn't know 360's came this small.
Steve G
Jim Bohnsack
[E
The model 20 was a unique 360. It was made in Germany and had some quite
different supervisor-state opcodes (e.g. XIO for doing I/O). In my youth
I stumbled across the minutes of the local IBM User group (circa 1967)
and there was a big debate as to whether those with 360/20 should form
their own
:
Subject:Re: OT: S/360 hardware related.
The model 20 was a unique 360. It was made in Germany and had some quite
different supervisor-state opcodes (e.g. XIO for doing I/O). In my youth
I stumbled across the minutes of the local IBM User group (circa 1967)
and there was a big debate
The 360/20 ran DPS Disk Programming System a subset of the regular 360
Instruction set. I still have my IBM System 360 reference Card
System/360 Model 20 x20-1727-5 its a white booklet form..
Julian Wall
[EMAIL PROTECTED]
601-479-7460
Neale Ferguson wrote:
The model 20 was a unique 360.
PROTECTED]
Sent by: The IBM z/VM Operating System IBMVM@LISTSERV.UARK.EDU
11/07/2006 02:33 PM
Please respond to The IBM z/VM Operating System
To: IBMVM@LISTSERV.UARK.EDU
cc:
Subject:Re: OT: S/360 hardware related.
Is that magazine online? What mag. is it?
Jim
z/VM Operating System IBMVM@LISTSERV.UARK.EDU
11/07/2006 02:33 PM
Please
respond to The IBM z/VM Operating System
To:IBMVM@LISTSERV.UARK.EDU
cc:
Subject:Re: OT: S/360
hardware related.
Is that magazine online? What mag
That should be 360-50 not 36-50. :)
[EMAIL PROTECTED] wrote:
I recognize it. That is a 360-25 with a MFCU at one end and a printer at
the other. Back in the early 70's the Oklahoma Tax Commission had one
that ran an operating system called DOS that later grew up to be z/VSE.
My roommate was
to reuse old ones :-)
Regards,
Richard Schuh
-Original Message-
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of
McKown, John
Sent: Tuesday, November 07, 2006 1:44 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject:Re: OT: S/360 hardware related
On: Tue, Nov 07, 2006 at 02:38:50PM -0500,Steve Gentry Wrote:
} SC Magazine For Security Professionals Yes it is online, but I did
} not find the article. In doing some additional searching,
} I think it is a 360 model 20. I didn't know 360's came this small.
} Steve G
The model 20 was a
It is a 360/20. the 360/25 was larger and the upgrade from there was to a
360/mini-mod-22. the 360/25 would run 1401 emulation.
-Original Message-
From: Stephen Frazier [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 07, 2006 4:52 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: OT: S/360
and the upgrade from there was to a
360/mini-mod-22. the 360/25 would run 1401 emulation.
-Original Message-
From: Stephen Frazier [mailto:[EMAIL PROTECTED]
Sent: Tuesday, November 07, 2006 4:52 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: OT: S/360 hardware related.
That should be 360-50
Sent: Tuesday, November 07, 2006 2:05 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject:Re: OT: S/360 hardware related.
Are you sure? It looks like the Tax Commission room in the basement of
the capital building. I am sure they had a 360-25 running DOS. We had a
360-50 (my roommates machine
/360 hardware related.
On: Tue, Nov 07, 2006 at 02:28:13PM -0500,Steve Gentry Wrote:
} On page 50 of the Nov. 2006 issue of SC Magazine is a picture that has
} been labeled a System/360.
} I've seen a lot of S/360 pictures and have even been in the presence of
} one, but I don't ever recall
} a S
Frazier [mailto:[EMAIL PROTECTED] Sent: Tuesday,
November 07, 2006 4:52 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: OT: S/360 hardware related.
That should be 360-50 not 36-50. :)
[EMAIL PROTECTED] wrote:
I recognize it. That is a 360-25 with a MFCU at one end and a
printer at the other. Back
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