This item is from the Yet Another Enhanced IDE/Fast-ATA/ATA-2 FAQ, by John Wehman and Peter den Haan with numerous contributions by others. (v1.92).
Magnetoresistive or MR drive heads are quickly replacing the old inductive heads in all sections of the harddrive market. For more information, see for example <http://www.seagate.com/new/sep96/mr_techp.shtml>.
 
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