Article View: alt.folklore.computers
Article #625473Re: different architecture, was PDP 11/40 system manual
From: hanc...
Date: Wed, 15 Aug 2018 18:58
Date: Wed, 15 Aug 2018 18:58
22 lines
2777 bytes
2777 bytes
On Wednesday, August 15, 2018 at 7:09:42 AM UTC-4, Peter Flass wrote: > >> All the rest other than OS were mistakes. IBM was unable to get > >> even PCP to fit on the smallest machines, so DOS, TOS, BOS were written as > >> "temporary" systems which became permanent. > > > > Yes. I never entirely understood the difference between BOS and DOS. > > I realize that BOS could run in 8K and DOS needed 16K, but what else > > did BOS leave out? > > > > I don't know that much about BOS either. I used to think it was a subset of > OS, but Bitsavers has some manuals and it appears it was a subset of DOS. > I'll have to read the manuals. I would assume it at least left out > multiprogramming. I think BOS could be run from cards. I think the IBM S/360 history says BOS was intended as an emergency operating system rushed out so the users would have something to use quickly. It could also be used in very small systems--I believe S/360 was originally offered in only 8k (later raised to 16k). DOS was also an emergency development, but DOS managed to be permanent.
Technical Details
Message-ID:
<b18f5c86-fe28-45b5-a2c2-23bf6dc36a3b@googlegroups.com>Path:
mbox-mo1.pugleaf.net!w13-v6ni276qto.1!nntp.google.com!e8-v6no596510qtp.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mailReferences:
<21aaeee8-c41a-4442-a4eb-ea6a29b1e4f1@googlegroups.com> <5b71ce88.4681852@news.dslextreme.com> <pksssc$2p6c$1@gal.iecc.com> <1355830485.555945700.866949.peter_flass-yahoo.com@news.eternal-september.org> <pkut64$lt6$1@gal.iecc.com> <504928995.556023147.952672.peter_flass-yahoo.com@news.eternal-september.org>Show Full Headers
Complete Article Headers
X-Received: by 2002:ac8:29fd:: with SMTP id 58-v6mr14787174qtt.6.1534359537734; Wed, 15 Aug 2018 11:58:57 -0700 (PDT) X-BeenThere: alt.folklore.computers@googlegroups.com Received: by 2002:a37:498b:: with SMTP id w133-v6ls1382123qka.12.gmail; Wed, 15 Aug 2018 11:58:56 -0700 (PDT) X-Received: by 2002:a37:d603:: with SMTP id t3-v6mr15800022qki.26.1534359536918; Wed, 15 Aug 2018 11:58:56 -0700 (PDT) X-Received: by 2002:a81:3807:: with SMTP id f7-v6mr554583ywa.4.1534359536676; Wed, 15 Aug 2018 11:58:56 -0700 (PDT) Path: mbox-mo1.pugleaf.net!w13-v6ni276qto.1!nntp.google.com!e8-v6no596510qtp.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: alt.folklore.computers Date: Wed, 15 Aug 2018 11:58:56 -0700 (PDT) In-Reply-To: <504928995.556023147.952672.peter_flass-yahoo.com@news.eternal-september.org> Complaints-To: groups...@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=8.41.192.198; posting-account=WKyNOQkAAACNglsCZiIox1kdy9R-66KH NNTP-Posting-Host: 8.41.192.198 References: <21aaeee8-c41a-4442-a4eb-ea6a29b1e4f1@googlegroups.com> <5b71ce88.4681852@news.dslextreme.com> <pksssc$2p6c$1@gal.iecc.com> <1355830485.555945700.866949.peter_flass-yahoo.com@news.eternal-september.org> <pkut64$lt6$1@gal.iecc.com> <504928995.556023147.952672.peter_flass-yahoo.com@news.eternal-september.org> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <b18f5c86-fe28-45b5-a2c2-23bf6dc36a3b@googlegroups.com> Subject: Re: different architecture, was PDP 11/40 system manual From: hanc...@bbs.cpcn.com Injection-Date: Wed, 15 Aug 2018 18:58:56 +0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit