Five and quarter drives

From: Randy McLaughlin <>
Date: Fri Feb 11 18:40:13 2005

From: "Dwight K. Elvey" <>
Sent: Friday, February 11, 2005 6:19 PM
> Oops!
> I see you are talking 720K versus 1.2M. I would guess
> the there is a difference in rotation that would distinguish
> the two. The 720K should be the same rate as the 360K.
> I would guess both number of steps and rotation would
> determine the difference. Luckily, there were not that
> many 720K drives out there.
> Dwight

Not necessarily some 1.2M drives rotated at 360RPM but used a higher data
rate. If it was 300RPM it was 1.2M but if it was 360RPM it could be 360K,
720K, or 1.2M.

Using the speed alone you could separate most of 1.2M drives (300RPM).

Received on Fri Feb 11 2005 - 18:40:13 GMT

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