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>> I'd just hit it with a sledgehammer instead! ;-)
>>
>> Seriously though, how is the information about previous states of bits
>> stored on the drive? It would seem to imply that the drive has a much
>> greater capacity than we usually think -- it can hold the current
>> information and also past information. But how?
The way it was explained to me, the electrical charges applied to a hard
drive each have a residual effect. These residues will lay on top of one
another in a layered effect. Supposedly, if you have certain equipment, you
can read the 6 or 7 most recent layers of electromagnetic residue.
James
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