Jargon.

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…showed last 75 words of 1071 total…hard drive today is anywhere from 10 to 60 GB. Hard drive store information on a high-precision aluminum or glass disk through magnetism. Magnetic storage allows for "the magnetic medium to be easily erased and rewritten." Another advantage of magnetic storage is that the data will be remembered for many years. Because of this technology, our industry has made huge strides. And without the technology, the computer industry wouldn't be half as big as it is today.