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by CrankyCanuck
667 days ago
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I would have loved to know all this back in the day. In the early 90s I could hack together x86 assembly fairly well... interrupts were your friend. Anyhow, one of my buds showed me a diskette with what he called "laser spots". Apparently, that protection scheme involved the burning of the media with a laser...removing some area of the magnetic coating. The protected software would know where it was and attempt a write operation to that area. Failure to write meant it was (probably) not a copy. |
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