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- Xref: sparky comp.unix.questions:13849 alt.folklore.computers:16657
- Newsgroups: comp.unix.questions,alt.folklore.computers
- Path: sparky!uunet!stanford.edu!leland.Stanford.EDU!alderson
- From: alderson@elaine46.Stanford.EDU (Rich Alderson)
- Subject: Re: Whence Unix? (was Re: IS UNIX DEAD?) (New Thread?)
- In-Reply-To: bill@bilver.uucp (Bill Vermillion)
- Message-ID: <1992Nov23.180137.8351@leland.Stanford.EDU>
- Followup-To: comp.unix.questions
- Originator: alderson@leland.Stanford.EDU
- Sender: news@leland.Stanford.EDU (Mr News)
- Reply-To: alderson@elaine46.Stanford.EDU (Rich Alderson)
- Organization: Stanford University Academic Information Resources
- References: <Bx9vDB.8HI@unix.amherst.edu> <STEVEV.92Nov13100727@miser.uoregon.edu> <hT8BrAbBBh107h@lorc.UUCP> <1992Nov20.183900.16110@bilver.uucp>
- Date: Mon, 23 Nov 92 18:01:37 GMT
- Lines: 53
-
- In article <1992Nov20.183900.16110@bilver.uucp>, bill@bilver (Bill Vermillion) writes:
- >In article <hT8BrAbBBh107h@lorc.UUCP> lowen@lorc.UUCP (Lamar Owen) writes:
- >
- >>In <STEVEV.92Nov13100727@miser.uoregon.edu> stevev@miser.uoregon.edu (Steve VanDevender) writes:
- >
- >>>In article <1dvltdINN6i4@skat.usc.edu> jlowrey@skat.usc.edu (John 'Fritz' Lowrey) writes:
- >
- >>> My seed:
- >>> Microsoft DOS -> Intended as a stepping stone while DR
- >>> wrapped up CP/M-86, and now the program
- >>> loader of choice for countless millions.
- >
- >>>You really need to study up on your computing history. You seem
- >>>to imply that Microsoft got MS-DOS from Digital Research.
- >>>Microsoft got MS-DOS from a small firm called Seattle Computer,
- >>>which had written a quick-and-dirty CP/M clone called SC-DOS.
-
- Well... This has been discussed on this newsgroup before, but not for a while,
- so what the hell.
-
- What Seattle Computer did was to assemble the source for CP/M 1.4 on the 8086,
- for their single-board computer based on that chip. Microsoft bought it, not
- knowing that it was a copyright violation.
-
- >>>Then Microsoft hacked it up and marketed the hell out of it.
- >
- >>The original marketing niche for MS-DOS was as a stepping stone from the
- >>8-bit CP/M world to the multiuser 16-bit world of Xenix. Microsoft, in
- >>the early 80's, fully intended to make Xenix their high-end OS. However,
- >>the market chose otherwise.
- >
- >And why did the market choose otherwise.
- >
- >Easy. Dos 1.0 - on a 64k max memory machine with a single 160k floppy
- >at $60 list price was a much better deal than CPM from DRI at $300.
- >
- >DOS 1.0 looked a lot like CPM. But when I used it I found that the
- >S-100 4Mhz Z80 based machines with memory mapped display was so much
- >faster than the 4.7 Mhz 8086 machine with the IBM 'idea' of a video
- >display adapter was pretty poor.
-
- For obvious reasons.
-
- Of course, by that time CP/M was at version 2.2, which differed from version
- 1.4 in pretty much the same way that it differed from PC-DOS/MS-DOS.
-
- And that was a 4.7MHz *8088*--not even the full-fledged 8086. Cheaper support
- chips you know. Used the same 8-bitters as the 8080, 8085, and Z80.
- --
- Rich Alderson 'I wish life was not so short,' he thought. 'Languages take
- such a time, and so do all the things one wants to know about.'
- --J. R. R. Tolkien,
- alderson@leland.stanford.edu _The Lost Road_
-