Reply to post: Re: Observations

Roughly 30 years after its birth at UK's Acorn Computers, RISC OS 5 is going open source

steelpillow Silver badge

Re: Observations

ROM based OS can be as permanent or as upgradeable as you like. For example the EAROM (Electrically Alterable ROM) can be reprogrammed by enabling a special hardware signal, while Acorn made the ROM physically swappable and distributed OS upgrades by sending out a replacement chip. The BIOS in the average desktop PC faces similar issues but is mostly a lot more easily updated - and hence a lot more easily hacked.

An OS in ROM is not a panacea for all ills, but it helps finesse security management.

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