Five and quarter drives

From: Tom Jennings <>
Date: Fri Feb 11 19:38:41 2005

On Fri, 11 Feb 2005, Steve Thatcher wrote:

> a 80 track drive can be either a high density drive or a double density
> drive... just because it can step 80 tracks does not mean that it is a 1.2meg
> drive.


For hardware of such recent vintage, that manyof us were
once intimate with, we don't very _at_##% much, do we!

All this junk would make a GREAT spreadsheet to post somewhere.

If we can't figure it out, we're all doomed :-)

> At 07:14 PM 02/11/2005, Dwight K. Elvey wrote:
>> Huh?
>> When I step a 80 track drive on my tester, it goes
>> 80 tracks. When I step 40 it goes 40. When a PC reads
>> a 360K disk on a 1.2M drive it double steps the tracks.
>> Also, not mentioned is that I believe the rotation
>> rate is different for the two drive. (360/300 rpm or something)
>> Dwight

Tom Jennings <>
Received on Fri Feb 11 2005 - 19:38:41 GMT

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