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Groups > alt.folklore.computers > #162840
| From | Dan Espen <despen@verizon.net> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: IBM's 96 column punch card (was System/3)? |
| Date | 2016-04-21 22:21 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <nfc1k2$n54$1@dont-email.me> (permalink) |
| References | (5 earlier) <c26b52a8-a54a-44e7-ba71-90c2a3d54bdf@googlegroups.com> <nf9iqr02cba@news1.newsguy.com> <1329586485.482962777.917121.peter_flass-yahoo.com@news.eternal-september.org> <nfbgrp$5en$1@dont-email.me> <nfbubi0hpv@news3.newsguy.com> |
"Joe Morris" <j.c.morris@verizon.net> writes:
> "Dan Espen" <despen@verizon.net> wrote:
>
> [IBM mainframe card readers]
>> 2540 and a 2501.
>> The 2501 never got much use.
>> I always felt the 2501 was a favor for the salesman.
>
> The 2540 wasn't just a card reader; it also had a card punch (and, as an
> optional feature, could use the punch side as a second reader).
> Additionally, the 2540 could not be directly attached to the computer's
> channel; it required a separate control unit (2820) - at, of course,
2820->2821
> additional cost. (Note that a 2820 could support up to three 140x printers
Six models of the IBM 2821 Control Unit were available, as follows:
Model 1 attached one IBM 2540 and one IBM 1403;
Model 2 attached one IBM 1403;
Model 3 attached two or three IBM 1403s;
Model 4 attached one IBM 2540 and one IBM 1404, but only on IBM System/360 models 30, 40 and 50;
Model 5 attached one IBM 2540 and two or three IBM 1403s; and
Model 6 attached one IBM 2540.
..
--
Dan Espen
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Re: IBM's 96 column punch card (was System/3)? Quadibloc <jsavard@ecn.ab.ca> - 2016-04-15 07:16 -0700
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-04-15 17:16 +0200
Re: IBM's 96 column punch card (was System/3)? "Rod Speed" <rod.speed.aaa@gmail.com> - 2016-04-21 19:55 +1000
Re: IBM's 96 column punch card (was System/3)? Stephen Wolstenholme <steve@easynn.com> - 2016-04-21 11:10 +0100
Re: IBM's 96 column punch card (was System/3)? "J. Clarke" <j.clarke.873638@gmail.com> - 2016-04-21 22:17 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-15 14:03 -0700
Re: IBM's 96 column punch card (was System/3)? Walter Bushell <proto@panix.com> - 2016-04-17 10:36 -0400
Re: IBM's 96 column punch card (was System/3)? Stephen Wolstenholme <steve@easynn.com> - 2016-04-17 15:46 +0100
Re: IBM's 96 column punch card (was System/3)? Dave Pitts <dpitts@cozx.com> - 2016-04-17 09:52 -0600
Re: IBM's 96 column punch card (was System/3)? Gerard Schildberger <gerard46@rrt.net> - 2016-04-17 17:18 -0700
Re: IBM's 96 column punch card (was System/3)? Walter Bushell <proto@panix.com> - 2016-04-22 11:01 -0400
Re: IBM's 96 column punch card (was System/3)? Ahem A Rivet's Shot <steveo@eircom.net> - 2016-04-26 08:22 +0100
Re: IBM's 96 column punch card (was System/3)? Ahem A Rivet's Shot <steveo@eircom.net> - 2016-04-26 08:20 +0100
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-19 11:44 -0700
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-20 01:36 +0000
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-20 16:58 -0700
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-21 03:52 +0000
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-21 12:37 -0700
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-21 16:25 -0400
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-21 17:35 -0400
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-21 21:51 +0000
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-21 20:58 -0400
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-22 11:34 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:53 -0700
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:45 -0700
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-22 11:34 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:55 -0700
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-22 22:18 +0000
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:38 -0700
Re: IBM's 96 column punch card (was System/3)? "Joe Morris" <j.c.morris@verizon.net> - 2016-04-21 21:21 -0400
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-21 22:21 -0400
Re: IBM's 96 column punch card (was System/3)? Anne & Lynn Wheeler <lynn@garlic.com> - 2016-04-21 21:53 -0700
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-22 15:22 +0000
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-04-22 17:55 +0000
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:31 -0700
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-23 10:43 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-23 12:48 -0700
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-23 16:21 -0400
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-23 18:12 -0400
Re: IBM's 96 column punch card (was System/3)? JimP <solosam90@gmail.com> - 2016-04-23 20:44 -0500
Re: IBM's 96 column punch card (was System/3)? Huge <Huge@nowhere.much.invalid> - 2016-04-24 09:09 +0000
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-25 15:08 +0000
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-25 13:39 -0700
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-23 18:07 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-25 13:48 -0700
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-25 17:33 -0400
Re: IBM's 96 column punch card (was System/3)? "Joe Morris" <j.c.morris@verizon.net> - 2016-04-25 19:47 -0400
Re: IBM's 96 column punch card (was System/3)? Dan Espen <despen@verizon.net> - 2016-04-25 22:56 -0400
Re: IBM's 96 column punch card (was System/3)? Jon Elson <jmelson@wustl.edu> - 2016-04-26 17:51 -0500
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-21 21:40 +0000
Re: IBM's 96 column punch card (was System/3)? Walter Bushell <proto@panix.com> - 2016-04-21 22:31 -0400
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-22 15:22 +0000
Re: IBM's 96 column punch card (was System/3)? Stephen Wolstenholme <steve@easynn.com> - 2016-04-22 07:15 +0100
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-04-22 14:44 +0000
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:16 -0700
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-22 17:10 -0400
Re: IBM's 96 column punch card (was System/3)? Gene Wirchenko <genew@telus.net> - 2016-04-22 22:38 -0700
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-23 16:28 +0000
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-21 12:35 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-21 12:41 -0700
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-04-21 16:25 -0400
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-22 12:18 -0700
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