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Subject:Re: What about OLD computers?? From:"Sandy Harris" <sandyinchina -at- gmail -dot- com> To:TECHWR-L <techwr-l -at- lists -dot- techwr-l -dot- com> Date:Tue, 2 Dec 2008 08:51:19 +0800
On Tue, Dec 2, 2008 at 2:03 AM, Downing, David <DavidDowning -at- users -dot- com> wrote:
> Actually, FWIW, it _is_ actually possible (and not just theoretically,
> but has actually been performed) to recover data even after perturbing
> it with a large magnet and/or writing over the data many times.
>
> -----------------------------------------------------
>
> How is this possible, once the data has actually been scrambled with a
> magnet or completely written over with 0s and 1s?
See the Gutmann paper, citation in my earlier post.
--
Sandy Harris,
Quanzhou, Fujian, China
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