In times when I was working with my 1st Microprocessors early in the eighties, there were the 8 bit Intel 808x processors, and the MOS 6502 CPU, that was used in the Apple II, the Commodore C64, the PET 2001 etc. The father of the MOS 6502 processor was Chuck Peddle, who died on December 15, 2019 at the age of 82. Some colleagues from Western Design Center have published a story about him.
Advertising