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Subject:
From:
Jim Meagher <[log in to unmask]>
Reply To:
PCSOFT - PC software discussion list <[log in to unmask]>
Date:
Tue, 17 Feb 1998 13:53:05 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (26 lines)
Allan Baer wrote:
> I do not believe anyone knows that answer.   My view is that since the
> area
> inside a sector is written (electrical patterns) over and over millions
> of
> times.  That the coating may fail to accept the electrical pattern

Alan has the right idea, but it uses magnetic polarization of the
ferric oxide (iron) in the coating.  And yes, the coating does
eventually
become un-magnetizable (I think I just made up a new word ;-} )due to
physical wear and residual polarizations from previous writings.


--
Jim Meagher
============================
Micro Solutions Consulting        Web Design, Network Administration
[log in to unmask]                     Hard/software Installation, Service
http://www.ezy.net/~microsol    410-543-8996
============================


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