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dborehamtoday at 4:57 PM0 repliesview on HN

The first computer I used (Sinclair Mk14) featured two fuse programmable ROMs. Fwiw the article says PROMs were replaced by EPROMs in the 1980s which is true but only for memory applications. PALs (programmable array logic, also made by MMI), which were the bread and butter of random logic design through the 1990s afaik also used fuse programmability. Eventually those were replaced by more dense CMOS chips: FPGAs and so on that use either EEPROM or RAM programming. There is also a factory programming technique used on large chips where fuses are "laser zapped" to lock/unlock functionality, set limits on clock speed and seal encryption keys, which I think is still in use today.