I learned almost all my low-level computer knowledge from Archimedes & RISC PC through the 90s. Very glad that ARM code is still a useful skill, even if knowledge of absolute memory address of OS_ SWI patch tables went in the dustbin :)
But it was only after Acorn imploded in 1998, and a a couple of years of working with Linux that I thought "hmmm, you mean I can write shared libraries for my C code that aren't kernel modules?" and "what, you mean the computer can just switch away from my task even though I've not called Wimp_Poll? What if I'm not done?" and "What, you mean the OS will just kill my task if I address some memory I'm not supposed to? How does it not know I didn't intend to patch the OS from my desktop application?" etc. etc.
Also the Archimedes (at least) was pretty much the most expensive computer on the planet at the time - something like £3000 in 1988 money - it's amazing they sold so many to people just on the strength of Zarch :) ( https://www.youtube.com/watch?v=ALfnZjCiuUQ )
But it was only after Acorn imploded in 1998, and a a couple of years of working with Linux that I thought "hmmm, you mean I can write shared libraries for my C code that aren't kernel modules?" and "what, you mean the computer can just switch away from my task even though I've not called Wimp_Poll? What if I'm not done?" and "What, you mean the OS will just kill my task if I address some memory I'm not supposed to? How does it not know I didn't intend to patch the OS from my desktop application?" etc. etc.
Also the Archimedes (at least) was pretty much the most expensive computer on the planet at the time - something like £3000 in 1988 money - it's amazing they sold so many to people just on the strength of Zarch :) ( https://www.youtube.com/watch?v=ALfnZjCiuUQ )