Re: Apple ]['s Disk operating System?

[cheer@i.hate.spam (Christopher D. Heer)]

It was Wed, 05 Mar 1997 00:08:37 GMT.  I was reading instead of working.  And 
Mark Percival <percim@odyssee.net> said:

>On Mon, 03 Mar 1997 21:21:28 -0500, ralphp@gcstation.net (Ralph Wade
>Phillips) wrote:

>>In article <3319b18d.1260713@news.odyssee.net>, percim@odyssee.net (Mark
>>Percival) wrote:

>>> Up to DOS 3.3, I don't believe there even was a official Microsoft
>>> version of DOS.  All versions were marketed as PC-DOS from IBM even
>>> though Microsoft actually wrote it.

>>        Not as a separate retail product, no.  However, I have a couple of
>>copies of Telix MSDOS 3.21 ... and do remember running ZDos 1.21 (the
>>version of MSDOS with Zeniths' proprietory extensions for the Z100 family
>>...

>Never had a chance to see thoses versions of DOS.

There was never a full retail "Microsoft MS-DOS" product, and the first 
Microsoft MS-DOS Upgrade retail product was version 5.0.

Prior to that, *ALL* MS-DOS implementations were for sale only with a computer, 
and only by computer vendors.  There were all sorts of specific versions: 
Leading Edge DOS for Leading Edge PCs, Compaq DOS, Multitech (and later Acer) 
DOS, etc.

I'm not at all sure what you mean by the comment "I don't believe there even 
was a [sic] official Microsoft version of DOS."

IBM, as far as I know, was the only entity ever allowed to sell a non-upgrade 
DOS over the counter.  The last version of PC-DOS that was really just a 
renamed MS-DOS was version 4.
-- 
          Christopher D. Heer - cheer at us dot oracle dot com
     My opinions are my own and do not reflect those of Oracle Corp.
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