hey i never knew about the Datapoint 2200 (1970):
https://en.wikipedia.org/wiki/Datapoint_2200
it was supposed to be a dumb terminal but it was "secretly" an actual - very early - personal computer ("they chose to keep quiet about this so as not to concern investors"). its CPU was going to be a microprocessor chip (rather than discrete logic), and they asked TI and Intel to design it but TI couldn't make it, and they didn't use Intel's chip. BUT Intel kept the design and it ended up becoming the x86 architecture!