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- From: hebo@hp850.mbari.org (Bob Herlien)
- Newsgroups: comp.os.cpm
- Subject: Re: CP/M operating sys for intel machines?
- Message-ID: <5796@taurus.cs.nps.navy.mil>
- Date: 30 Jul 92 20:40:43 GMT
- References: <1992Jul24.150344.25605@wam.umd.edu> <ERU.92Jul27171440@tnso04.tele.nokia.fi>
- Sender: news@taurus.cs.nps.navy.mil
- Organization: Monterey Bay Aquarium Research Institute
- Lines: 39
-
- In article <ERU.92Jul27171440@tnso04.tele.nokia.fi> eru@tnso04.tele.nokia.fi (Erkki Ruohtula) writes:
- >
- >There was a system called CP/M-86, which in the beginning of PC:s
- >looked like a viable competitor to MS-DOS, and was supplied with many
-
- When the IBM PC first came out, CP/M-86 had, in theory, equal status with
- PC-DOS. It was licensed by IBM, and available on PC's as an IBM product.
- However, Bill Gates managed to make a deal with IBM that resulted in the
- retail price of DOS being about 1/4 of the retail price of CP/M-86. As you
- can imagine, very few copies of CP/M-86 were sold this way. Digital Research
- made an attempt to retail CP/M-86 through distribution channels at a competitive
- price, but by then the market had decided that PC's were DOS machines. The
- rest is history.
-
- >
- >I presume CP/M-86 gradually evolved into the MS-DOS-compatible
- >operating system DR-DOS that Digital Research sells these days
-
- Well, yes and no. In the beginning, there was CP/M. CP/M begat CP/M-86
- and MP/M. MP/M and CP/M-86 begat MP/M-86. MP/M-86 begat Concurrent CP/M-86.
- Concurrent CP/M-86 begat Concurrent DOS. All of this was done at the main
- offices in Monterey.
-
- Engineering of the Concurrent DOS product was then moved to the U.K. development
- office outside London. They enhanced this product for several years.
- Eventually, they developed enough expertise in the internal workings of DOS
- that they decided that they could successfully clone DOS. This they did,
- and called it DR-DOS. It was not a deriviative of CDOS or CP/M-86, tho.
-
- >successfully (I wonder whether DR-DOS can run any CP/M-86
- >software?).
-
- Concurrent CP/M-86 and some versions of Concurrent DOS could. DR-DOS can't.
-
- --------------------------------------------------------------
- Bob Herlien
- MBARI (Monterey Bay Aquarium Research Institute)
- hebo@mbari.org
- "Limit congressmen to two terms. One in office. One in jail."
-