Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!vax5!ktly
From: ktly@vax5.CIT.CORNELL.EDU
Newsgroups: comp.sys.atari.st
Subject: Re: PC Ditto II -- speed?
Summary: False chronology, but why is this in comp.sys.atari.st?
Keywords: AT was always a 286 machine.
Message-ID: <18573@vax5.CIT.CORNELL.EDU>
Date: 8 May 89 21:17:08 GMT
References: <8905021217.AA08520@nh.cs.wm.edu> <98@sdcc10.ucsd.EDU> <537@TSfR.UUCP> <3944@tekcrl.LABS.TEK.COM>
Sender: news@vax5.CIT.CORNELL.EDU
Reply-To: ktly@vax5.cit.cornell.edu (Jonathan C. Kagle)
Followup-To: comp.misc
Distribution: all
Organization: Cornell Information Technologies, Ithaca NY
Lines: 25

In article <3944@tekcrl.LABS.TEK.COM> danw@tekchips.LABS.TEK.COM (Daniel E. Wilson) writes:
>In article <537@TSfR.UUCP>, usenet@TSfR.UUCP (usenet) writes:
>> In article <103@sdcc10.ucsd.EDU> cs163afu@sdcc10.ucsd.edu.UUCP (Some call me...Tim) writes:
>> >The initial release of the IBM PC AT contained a 6Mhz 8086
>>  Wrong.  The IBM PC AT started out at a 6mhz 80286 - IBM only upped the
>> clock to 8mhz when everybody else on the planet was running 8mhz/10mhz/12mhz
>> on their '286 boxes.
>   This may be a shock to you but the PC AT was around long before the
>80286 was created.  The AT started out with the 8086 [...]

	Sorry if this is turning into a yes/no/yes/no argument, but "Usenet"
is right.  The IBM ATs (and almost all of their clones) have been 80286-based
from day 1.  The PC and PC/XT series used 8088 processors exclusively.  The
PS/2 models 25 and 30 (not 30/286) are the only IBM personal computers 
(systems? :-) that used the 8086.  The 80186 was used in the Tandy 2000
and a number of PC/XT clones and semi-compatibles, but NEVER in an AT.  There
have been a number of less successful IBM products that have used other
processors (10 pts. for the person who can name the model that used two 
modified 68000s).

	Hope this helps straighten things out a bit...

	   -Jonathan

P.S.  If it doesn't run 286 code, it can't run EXCEL, I guess.  Oh, well...