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 under DOS also
] 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 under DOS also. I think I remember using some
kind
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 would facilitate the
hardware feature. I
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 required a
hardware feature and a simulator
homas
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
There was an emulator
not long after making
the sale.
Regards,
Richard Schuh
-Original Message-
From: The IBM z/VM Operating System
[mailto:ib...@listserv.uark.edu] On Behalf Of Tom Duerbusch
Sent: Friday, May 22, 2009 8:37 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: IBM 1401: was Re: z/VM 5.4 VSAM
http://ed-thelen.org/1401Project/1401RestorationPage.html
Tom Duerbusch
THD Consulting
Jim Bohnsack jab...@cornell.edu 5/20/2009 8:46 PM
I don't remember a VM/370 1401 emulator. I supported IBM customers that
were running 1401 support under DOS/360, but now I can't remember what
it was
Subject: IBM 1401: was Re: z/VM 5.4 VSAM question - PJBR
http://ed-thelen.org/1401Project/1401RestorationPage.html
Tom Duerbusch
THD Consulting
Jim Bohnsack jab...@cornell.edu 5/20/2009 8:46 PM
I don't remember a VM/370 1401 emulator. I supported IBM
customers that were running 1401
..
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 360-30 had
@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 ran 1401
programs on a 370
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