Path: utzoo!utgpu!water!watmath!221.162.fido!Usenet_area_"Cs.I.Pc"
From: 221.162.fido!Usenet_area_"Cs.I.Pc"@watmath.waterloo.edu
Newsgroups: comp.sys.ibm.pc
Subject: Re: 1.44 Mb 3.5" floppy disk on an AT
Message-ID: <16212@watmath.waterloo.edu>
Date: 7 Jan 88 14:36:17 GMT
Sender: ugate@watmath.waterloo.edu
Lines: 37

From Usenet: watmath!codas!karthur
From: karthur@codas.att.com (Kurt_R_Arthur)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 1.44 Mb 3.5" floppy disk on an AT
Message-ID: <1507@codas.att.com>
Date: 8 Jan 88 15:20:02 GMT
References: <450@Lindy.STANFORD.EDU>
Distribution: comp.sys.ibm.pc
Organization: AT&T, Altamonte Springs, FL
Lines: 22

In article <450@Lindy.STANFORD.EDU> ral@Lindy.STANFORD.EDU (Rich Levitt)
writes:
> 
> I have a 6/10 Mhz AT clone with a Western Digital hard/floppy disk
> controller.  I intend to add a 3.5" floppy and was wondering if I
> could use the 1.44 Mb version.  I have been told that the 1.44 drive
> requires a 10 Mhz CPU which is why IBM doesn't put them in the Model
					 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 50.  I'd appreciate hearing from anyone that has tried this -
  ^^^
> successfully or otherwise.  Thanks

IBM uses 720Kb floppies in the model 25 & model 30.  In all MicroChannel
Architecture (MCA) PS/2s (models 50, 60, 80, & 9370) a 1.44MB disk is
used.  The 1.44MB disk is backwards-compatible with the 720Kb drive.

Also, unless I'm mistaken, CPU and disk capacity are not related
(corrections, please) except logically (by which I mean one does not match
a multi-gigabyte disk with a 1 MHz, 4-bit CPU because of relative cost).


Kurt Arthur
Software Services of Florida, Inc.

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