Five and quarter drives

From: Steve Thatcher <>
Date: Fri Feb 11 18:25:49 2005

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.

At 07:14 PM 02/11/2005, Dwight K. Elvey wrote:
> 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)
Received on Fri Feb 11 2005 - 18:25:49 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:37:37 BST