Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 07 Aug 2001 16:44:23 -0600
From:      Brett Glass <brett@lariat.org>
To:        John Galt <galt@inconnu.isu.edu>
Cc:        Brad Knowles <brad.knowles@skynet.be>, Bob Willcox <bob@immure.com>, chat list <freebsd-chat@FreeBSD.ORG>
Subject:   Re: How did the MSFT monopoly start?
Message-ID:  <4.3.2.7.2.20010807163907.044b1c30@localhost>
In-Reply-To: <Pine.LNX.4.33.0108071610020.14442-100000@inconnu.isu.edu>
References:  <4.3.2.7.2.20010807155426.0485aab0@localhost>

next in thread | previous in thread | raw e-mail | index | archive | help
At 04:24 PM 8/7/2001, John Galt wrote:
  
>On Tue, 7 Aug 2001, Brett Glass wrote:
>
>>At 03:43 PM 8/7/2001, Brad Knowles wrote:
>>
>>>        Surely a free version of Unix based on BSD would not have been "expensive".
>>
>>The only alternative at that point might have been, ironically,
>>Microsoft Zenix. Which the PC, lacking an MMU, couldn't support.
>
>You had us all going, right up to the point of you misspelling "Xenix".

That was a typo. I intended to hit the "X", but missed and hit the
"Z" instead. 

>Nobody using a computer at the time would've forgotten Xenix: it worked
>splendidly on such greats as the PC/XT and the TRS-80 mod16 (neither of
>which had a MMU...).
>
>http://www.unicom.com/pw/sco-xenix

IIRC, the TRS-80 Model 16 used bank switching as a primitive form
of memory protection. Sort of a poor man's MMU.

I wasn't aware that it ever COULD run on the XT without a daughterboard
with a "real" CPU. (Microway and one or two other vendors were selling
such boards, as I recall.)

--Brett


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-chat" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4.3.2.7.2.20010807163907.044b1c30>