Comment by fidotron

Actually one of the first ARM spin off products was the 250 for Acorn, which was an entire Acorn computer system on a a chip.

Some of the other details you have are wrong too, to the point your comment is really quite misleading.

Anyone wanting an accurate version should check wikipedia: https://en.m.wikipedia.org/wiki/Acorn_Computers

(To be blunt the above comment is like a very bad LLM summary of the Acorn article).