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From: plocher@puff.wisc.edu (John Plocher)
Newsgroups: net.micro.pc
Subject: Re: MS/PC DOS?
Message-ID: <277@puff.wisc.edu>
Date: Wed, 29-Oct-86 12:37:44 EST
Article-I.D.: puff.277
Posted: Wed Oct 29 12:37:44 1986
Date-Received: Wed, 29-Oct-86 22:18:49 EST
References: <985@husc2.UUCP> <394@catnip.UUCP> <4058@amdahl.UUCP> <404@catnip.UUCP>
Reply-To: plocher@puff.WISC.EDU (John Plocher)
Organization: U of Wisconsin CS Dept
Lines: 36
Keywords: MS-DOS, PC-DOS

Notes from other messages:
>>>>I am an experienced user of PC-DOS, but I am still unclear on
>>>>the exact differences between MS-DOS and PC-DOS.

>>> There is little if any difference between MS-DOS and PC-DOS.

>>Sorry, but I couldn't disagree more!
>>The term PC-DOS is usually used to refer to the collection of MS-DOS
>>*and* the BIOS and H/W rupt support as implemented by IBM PC's (and "true

>And, as I type this, my keystrokes are being processed by those very same
>BIOS ROMs, although my machine is running multiuser Xenix, not PC-DOS.

    WRONG!

      If you are using XENIX, your keystrokes are NOT going through
      any ROM routines - in fact, the ROMs are ONLY used at boot time
      to determine HARD DISK parameters.

      The Xenix device drivers are totally seperate from any of the
      ROM BIOS routines!

      (this info relates to MicroSoft/IBM Xenix 2.0 (SVR2ish) only)

>
>In short, compatibility is determined by the hardware and the BIOS, not
>by whose version of DOS you buy.

	I agree totally!


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