Weak bits floppy disc protection: an alternate origins story on 8-bit

Re:Weak bits floppy disc protection: an alternate origins st... by mrlonglong on Saturday June 27, 2020 @06:19PM (#23665122)

Fabulous explanation of how they did copy protection in the old days. I remember the 8271 well. I'm not sure why they used such an old chip with the BBC B, as it was quite expensive. The WD1770 was better and cheaper.

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Re:Weak bits floppy disc protection: an alternate origins st... by LeoPanthera on Sunday June 28, 2020 @12:22AM (#23666724)

1770 upgrades were extremely common for the BBC Micro. (They are, astonishingly, still made.) The B+ and the BBC Master came with a 1770 by default.

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Re:Weak bits floppy disc protection: an alternate origins st... by mrlonglong on Saturday June 27, 2020 @06:22PM (#23665147)

I preferred the NEC µPD765 though. Higher density.

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