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> At that stage it shipped with Arthur because, or so we were told, the "actual" OS was still in development. I think this was ARX[0], which was overambitious.

> At that stage it shipped with Arthur because, or so we were told, the "actual" OS was still in development. I think this was ARX[0], which was overambitious. Arthur apparently stands for A Risc by THURsday[1] EDIT: a detailed article[2], linked from lproven's article[3], about the history of ARX / Arthur / RiscOS. [0] https://en.wikipedia.org/wiki/ARX_(operating_system) https://en.wikipedia.org/wiki/ARX_(operating_system) [1] https://www.theregister.com/software/2022/06/23/how-risc-os-happened-as-told-by-original-acorn-arthur-lead/265803 https://www.theregister.com/software/2022/06/23/how-risc-os-... [2] https://www.rougol.jellybaby.net/meetings/2012/PaulFellows/ https://www.rougol.jellybaby.net/meetings/2012/PaulFellows/ [3] https://liam-on-linux.livejournal.com/73983.html https://liam-on-linux.livejournal.com/73983.html

lproven 2mo ago
Oh, thank you! I could come back to the "modernising RISC OS" piece and update, as things are now actually happening. Although I was pessimistic for its prospects, it's becoming reality. I know of 2 main efforts... * Merlin, an all-new OS in Rust, aiming for a very simplified modern design and backwards compatibility. * The RISC OS Open team is rewriting it in C. I also know of an effort involving running an Arm64 hypervisor and then running the current 32-bit RISC OS kernel in a whole-machine VM. I lack any tech details about it so far, though.