Re: Nope
"Acorn didn't 'design the first RISC processor'"
That's not the only problem with that bit of the article. As you say, though, the Archimedes was the first commercial RISC-based desktop - and that's probably what led to the mistaken belief that they designed the first RISC Processor. Just a little conflation.
"and they didn't 'develop the technology with Apple' - the first ARM was an Acorn effort. Apple's involvement was funding ~40% of ARM, necessary as they wouldn't use 100% Acorn owned tech in their own products."
Quite. Apple had nothing whatsoever to do with its original development.
The other thing that jumps out is if you follow the timeline in the article, it reads as though Acorn designed the processor in 1986 - but the first ARM chip was brought to life in April 1985, with the project itself starting a year and a half earlier.