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Groups > alt.folklore.computers > #215449
| From | John Levine <johnl@taugh.com> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: IBM 1620 and its successors, not An Xmyth stack overflow ? |
| Date | 2020-12-12 02:22 +0000 |
| Organization | Taughannock Networks |
| Message-ID | <rr19gd$1utl$1@gal.iecc.com> (permalink) |
| References | <rql47u$13v$1@dont-email.me> <rr0csg$pso$3@gal.iecc.com> <55f722ff-9411-45f6-8bc3-13d44c911fb3n@googlegroups.com> <rr16t31si7@news4.newsguy.com> |
In article <rr16t31si7@news4.newsguy.com>, Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote: >> The above reply applies to the IBM 1620 Model I (one). >> The word "CADET" was the code name before the first delivery, it was >> just a code word; almost all IBM hardware had a code name assigned to it >> during design/production before the first delivery. They were just names. >> The model II (two) didn't use lookup tables except for multiplication. >> Model III was about to go into production, but was cancelled because of >> the upcoming IBM 360, and IBM didn't want anything to compete with the >> 360, even other IBM computers. > >Sounds familiar, like the way the original IBM Personal Computer >was crippled so as not to compete with the Displaywriter. In this case it wasn't a matter of crippling the performance, it was a desire to kill of all of the old incompatible product lines. There was an option for the 360/30 to emulate a 1620 but I don't think it was very popular. Shortly after the 360 series came out, IBM added the 1130, a 16 bit binary machine that wasn't compatible with anything. It was pretty slow, but it was a lot faster than a 1620 and came with a standard disk drive. Its software used the 360's 8-bit EBCDIC code. For the real-time customers, there was the 1800, a souped up 1130, and the 360/44, an odd stripped down 360 that ran floating point fairly fast and had some realtime interface features. -- Regards, John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. https://jl.ly
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An Xmyth stack overflow ? gareth evans <headstone255@yahoo.com> - 2020-12-07 11:38 +0000
Re: An Xmyth stack overflow ? gareth evans <headstone255@yahoo.com> - 2020-12-07 11:41 +0000
Re: An Xmyth stack overflow ? maus <maus@dmaus.org> - 2020-12-08 15:08 +0000
Re: An Xmyth stack overflow ? maus <maus@dmaus.org> - 2020-12-10 17:52 +0000
Re: An Xmyth stack overflow ? Dave Garland <dave.garland@wizinfo.com> - 2020-12-10 22:46 -0600
Re: An Xmyth stack overflow ? Mike Spencer <mds@bogus.nodomain.nowhere> - 2020-12-11 01:47 -0400
Re: An Xmyth stack overflow ? Ahem A Rivet's Shot <steveo@eircom.net> - 2020-12-11 06:54 +0000
Re: An Xmyth stack overflow ? Bob Eager <news0073@eager.cx> - 2020-12-11 09:46 +0000
Re: An Xmyth stack overflow ? John Levine <johnl@taugh.com> - 2020-12-11 18:13 +0000
Re: An Xmyth stack overflow ? Gerard Schildberger <gerard46@rrt.net> - 2020-12-11 11:29 -0800
Re: An Xmyth stack overflow ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-12-12 01:37 +0000
Re: IBM 1620 and its successors, not An Xmyth stack overflow ? John Levine <johnl@taugh.com> - 2020-12-12 02:22 +0000
Re: IBM 1620 and its successors, not An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-12 06:58 -0700
Re: 360/44, was IBM 1620 and its successors, not An Xmyth stack overflow ? John Levine <johnl@taugh.com> - 2020-12-12 19:16 +0000
Re: 360/44, was IBM 1620 and its successors, not An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-12 19:57 -0700
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-11 21:44 -0500
Re: An Xmyth stack overflow ? Dave Garland <dave.garland@wizinfo.com> - 2020-12-11 23:11 -0600
Re: An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-12 06:58 -0700
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-12 09:43 -0500
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 10:31 -0500
Re: An Xmyth stack overflow ? Ahem A Rivet's Shot <steveo@eircom.net> - 2020-12-12 17:40 +0000
Re: An Xmyth stack overflow ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-12-12 19:28 +0000
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-12 13:12 -0500
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 13:28 -0500
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-12 17:35 -0500
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 17:49 -0500
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-12 19:31 -0500
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 19:54 -0500
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 20:08 -0500
Re: An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-12 19:58 -0700
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 22:13 -0500
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-12 23:07 -0500
Re: An Xmyth stack overflow ? Dan Espen <dan1espen@gmail.com> - 2020-12-12 23:28 -0500
Re: An Xmyth stack overflow ? maus <maus@dmaus.org> - 2020-12-14 19:13 +0000
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-12 23:04 -0500
Re: An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-12 19:57 -0700
Re: An Xmyth stack overflow ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-12-13 16:23 +0000
Re: An Xmyth stack overflow ? J. Clarke <jclarke.873638@gmail.com> - 2020-12-13 11:47 -0500
Re: An Xmyth stack overflow ? Ahem A Rivet's Shot <steveo@eircom.net> - 2020-12-13 19:18 +0000
Re: An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-13 15:11 -0700
Re: An Xmyth stack overflow ? cb@elaine.df.lth.se (Christian Brunschen) - 2020-12-13 23:28 +0000
Re: An Xmyth stack overflow ? Ahem A Rivet's Shot <steveo@eircom.net> - 2020-12-13 23:23 +0000
Re: An Xmyth stack overflow ? Niklas Karlsson <anksil@yahoo.se> - 2020-12-13 09:05 +0000
Re: An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-12 19:57 -0700
Re: An Xmyth stack overflow ? Dave Garland <dave.garland@wizinfo.com> - 2020-12-13 11:22 -0600
Re: An Xmyth stack overflow ? Mike Spencer <mds@bogus.nodomain.nowhere> - 2020-12-12 01:55 -0400
Re: An Xmyth stack overflow ? gareth evans <headstone255@yahoo.com> - 2020-12-11 11:46 +0000
Re: An Xmyth stack overflow ? Peter Flass <peter_flass@yahoo.com> - 2020-12-11 17:22 -0700
Re: An Xmyth stack overflow ? John Levine <johnl@taugh.com> - 2020-12-12 02:24 +0000
Re: An Xmyth stack overflow ? Bob Eager <news0073@eager.cx> - 2020-12-12 10:16 +0000
Re: An Xmyth stack overflow ? Mike Spencer <mds@bogus.nodomain.nowhere> - 2020-12-10 16:28 -0400
Re: An Xmyth stack overflow ? usenet@only.tnx (Questor) - 2020-12-08 18:08 +0000
Re: An Xmyth stack overflow ? Ahem A Rivet's Shot <steveo@eircom.net> - 2020-12-08 18:53 +0000
Re: An Xmyth stack overflow ? gareth evans <headstone255@yahoo.com> - 2020-12-08 21:01 +0000
Re: An Xmyth stack overflow ? Ahem A Rivet's Shot <steveo@eircom.net> - 2020-12-08 22:28 +0000
Re: An Xmyth stack overflow ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-12-09 01:12 +0000
Re: An Xmyth stack overflow ? gareth evans <headstone255@yahoo.com> - 2020-12-09 11:43 +0000
Re: An Xmyth stack overflow ? drb@ihatespam.msu.edu (Dennis Boone) - 2020-12-08 20:57 -0600
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