Guest
asked 9 months ago
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Small electromagnetic heads travel up and down a spinning metal disk. If a 1 is to be recorded on the disk, electricity is run through a head, magnetizing the disk in its' immediate vicinity. This process is repeated thousands of times to record files. To remove a 1, electricity is run backwards through the head while it is over the 1, and the net result is a 0.
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Guest
answered 9 months ago
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