: IBMVM @ LISTSERV . UARK . EDU
Sent: Friday, May 29, 2009 12:35:19 PM GMT -06:00 US/Canada Central
Subject: Re: IBM 1401
Paper tape is immune from magnetic interference (of course, back then
there was no public documentation of EMF weapons, right?).
Another paper tape story... when I was in
2009 02:06 PM
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Re: IBM 1401
I'll be Dan for a minute.
Way off topic Let's get back to z/VM :)
"This message may contain confidential and/or privileged information. If
I'll be Dan for a minute.
Way off topic Let's get back to z/VM :)
"This message may contain confidential and/or privileged information. If you
are not the addressee or authorized to receive this for the addressee, you must
not use, copy, disclose, or take any action based on this message o
g a tape from a fiche slide
seems rather tedious to me.
-Original Message-
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf
Of william JANULIN
Sent: Friday, May 29, 2009 1:36 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401
When I worked at a bank, w
ppen to an
ICBM's targeting if the tape was not fed in correctly. I hope there was
something done to prevent that type of problem.
Regards,
Richard Schuh
> -Original Message-
> From: The IBM z/VM Operating System
> [mailto:ib...@listserv.uark.edu] On Behalf Of Mike Wa
tserv.uark.edu] On
Behalf Of Jim Bohnsack
Sent: Friday, May 29, 2009 10:40 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401
No, the IBM 2671 paper tape device was a reader only. The paper tape
punches were from older systems. I guess paper tape got punched on
teletype machines in S/360 days.
tape reader
that they could feed the paper tape into (I don't remember the model number) to
enter that transactions.
--- On Fri, 5/29/09, Mike Walter wrote:
> From: Mike Walter
> Subject: Re: IBM 1401
> To: IBMVM@LISTSERV.UARK.EDU
> Date: Friday, May 29, 2009, 1:35 PM
> Paper
--
> From: The IBM z/VM Operating System
> [mailto:ib...@listserv.uark.edu] On Behalf Of Mike Walter
> Sent: Friday, May 29, 2009 10:35 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: IBM 1401
>
> Paper tape is immune from magnetic interference (of course,
> back the
05/29/2009 11:49 AM
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Re: IBM 1401
Trivia.. Recently I went to the Titan-II ICBM silo (now a museum) just
outside Tucson, AZ ..
Interesting fact, they loaded the program for the nucleaur tipp
...@listserv.uark.edu] On
Behalf Of Jim Bohnsack
Sent: Friday, May 29, 2009 10:40 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401
No, the IBM 2671 paper tape device was a reader only. The paper tape
punches were from older systems. I guess paper tape got punched on
teletype machines in S/360 days
at machine in normal '360' mode, IPLing DOS off the 190 disk.
--- On Fri, 5/29/09, Jim Bohnsack wrote:
> From: Jim Bohnsack
> Subject: Re: IBM 1401
> To: IBMVM@LISTSERV.UARK.EDU
> Date: Friday, May 29, 2009, 11:39 AM
> No, the IBM 2671 paper tape device
> was a reader
No, the IBM 2671 paper tape device was a reader only. The paper tape
punches were from older systems. I guess paper tape got punched on
teletype machines in S/360 days. I had a customer with a 2671.
I started keeping IBM sales manual pages that were "discard this page"
when updates came out
necessarily
represent the opinions or policies of Hewitt Associates.
"Schuh, Richard"
Sent by: "The IBM z/VM Operating System"
05/29/2009 09:10 AM
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"The IBM z/VM Operating System"
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Thanks, Lyn
System
> [mailto:ib...@listserv.uark.edu] On Behalf Of Anne & Lynn Wheeler
> Sent: Thursday, May 28, 2009 7:41 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: IBM 1401
>
> rschuh wrote:
> > The smaller systems, the 360-20 and 360-30 had a 1401
> emulator mode. It was=
> >
rschuh wrote:
The smaller systems, the 360-20 and 360-30 had a 1401 emulator mode. It was=
a h/w or mc based feature. I don't know whether larger machines had it. Th=
ere was also a 1410 emulator mode on the -40. I do not know of any 1401 sup=
port that ran under DOS, but my DOS experience is m
10:24 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
Now I beg the question, 'What is the difference between an "emulator", and a
'simulator"?'.
I always thought they were differentiated in that the emulator req
y 26, 2009 8:46 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
>
> I think you are right, altho I also think that an emulator
> (if that is the name of the hardware piece) often would use
> some kind of specialized code that wo
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Jim Bohnsack
Sent: Sunday, May 24, 2009 9:44 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
COS--that's the name I was trying to think of. I think that there was
th
The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of Jim Bohnsack
Sent: Sunday, May 24, 2009 9:44 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
COS--that's the name I was trying to think of. I think that there was
the ability to run COS u
lf Of Huegel, Thomas
Sent: Friday, May 22, 2009 10:16 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
On 360/25 there was a CSL (Control Storage Load)deck that could be
loaded and then 1401 code ran 'native', no underlying DOS or OS system.=20
Th
A 14xx microcode-based emulator was available for all models of the IBM 360
and some models of the 370. I ran a 1401 emulator under OS/VS1 on a 370/158
in the early 1970's
Matthew
On Sat, May 23, 2009 at 2:09 AM, Schuh, Richard wrote:
> The smaller systems, the 360-20 and 360-30 had a 1401 emu
16 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
On 360/25 there was a CSL (Control Storage Load)deck that could be
loaded and then 1401 code ran 'native', no underlying DOS or OS system.
There was an emulator for 360/30 and 360/40 (DOS/26) we also r
n emulator ..
SIM1401 or SIM1400 something like that..
-Original Message-
From: The IBM z/VM Operating System on behalf of Schuh, Richard
Sent: Fri 5/22/2009 11:09 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
The smaller systems, the 360-20 and
The smaller systems, the 360-20 and 360-30 had a 1401 emulator mode. It was a
h/w or mc based feature. I don't know whether larger machines had it. There was
also a 1410 emulator mode on the -40. I do not know of any 1401 support that
ran under DOS, but my DOS experience is miniscule.
There wa
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