Article View: alt.folklore.computers
Article #621041Re: Why so many 6s and 8s in the 70s?
From: rnet...
Date: Sat, 17 Mar 2018 02:00
Date: Sat, 17 Mar 2018 02:00
23 lines
2608 bytes
2608 bytes
On Friday, March 16, 2018 at 9:18:29 PM UTC-4, Dan Espen wrote: > > The 14 came from the fact that the origial model, sold as an > > "elecronically programmable tabulator", had 1400 postions of internal > > storage. > Never heard that before but that sounds plausible. I think, underscore think, that I read it in some piece of 1401 literature "way back when". > Leaving the mystery of how they chose: > 1410 > 1460 > 1440 As to those, I suppose the 14xx came from having an instruction set and general internal arrangements similar to the 1401. If I remember correctly, the 1440 was a 1401, less parallel I/O, plus serial I/O to 1442 card machine, 1443 printer. Where the 1401 had I/O areas in fixed locations in storage, the 1440 could read into and write from anywhere in storage. The 1460 (hm. think hard) was a faster 1401, with I/O controls for a huge random access storage device. The 1410 was a bigger 1401 which used (I think) 5 digit storage addresses, but was otherwise rather like a 1401. Bob Netzlof
Technical Details
Message-ID:
<73be782b-604d-4170-a227-60d8affa0d81@googlegroups.com>Path:
mbox-mo1.pugleaf.net!a19ni743qtj.1!nntp.google.com!r16no529499qtn.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mailReferences:
<87sh9m9ny5.fsf@usenet.ankman.de> <c63e7d1c-a4ac-45e3-8ec6-8be10e221dc6@googlegroups.com> <p7ptui$sgd$2@reader1.panix.com> <p7q6j4$6no$1@gal.iecc.com> <8edcc5c1-44cb-4f1e-9649-c10927b1f816@googlegroups.com> <d20c0cba-42ec-48ad-b891-a3f0b9c97d04@googlegroups.com> <p8hqd3$7j0$1@dont-email.me>Show Full Headers
Complete Article Headers
X-Received: by 10.200.112.86 with SMTP id y22mr2629467qtm.47.1521252019060; Fri, 16 Mar 2018 19:00:19 -0700 (PDT) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 10.55.5.140 with SMTP id 134ls173674qkf.8.gmail; Fri, 16 Mar 2018 19:00:18 -0700 (PDT) X-Received: by 10.55.186.69 with SMTP id k66mr2547071qkf.42.1521252018382; Fri, 16 Mar 2018 19:00:18 -0700 (PDT) X-Received: by 10.31.100.5 with SMTP id y5mr322037vkb.1.1521252018241; Fri, 16 Mar 2018 19:00:18 -0700 (PDT) Path: mbox-mo1.pugleaf.net!a19ni743qtj.1!nntp.google.com!r16no529499qtn.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: alt.folklore.computers Date: Fri, 16 Mar 2018 19:00:17 -0700 (PDT) In-Reply-To: <p8hqd3$7j0$1@dont-email.me> Complaints-To: groups...@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=75.88.2.13; posting-account=7i4ihQoAAABwPA9aaMGcgrASHmMVELsa NNTP-Posting-Host: 75.88.2.13 References: <87sh9m9ny5.fsf@usenet.ankman.de> <c63e7d1c-a4ac-45e3-8ec6-8be10e221dc6@googlegroups.com> <p7ptui$sgd$2@reader1.panix.com> <p7q6j4$6no$1@gal.iecc.com> <8edcc5c1-44cb-4f1e-9649-c10927b1f816@googlegroups.com> <d20c0cba-42ec-48ad-b891-a3f0b9c97d04@googlegroups.com> <p8hqd3$7j0$1@dont-email.me> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <73be782b-604d-4170-a227-60d8affa0d81@googlegroups.com> Subject: Re: Why so many 6s and 8s in the 70s? From: rnet...@gmail.com Injection-Date: Sat, 17 Mar 2018 02:00:18 +0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit