Not so this about-as-compact-as-possible 6502 computer that fits on a single ... But what can this minimalist 6502 actually do? As you can see in the video below, anything a 555 timer can do ...
The result is a $4 Z80 home computer, and a great Hackaday Prize entry to boot. So, what do he need to build a retrocomputer loaded up with Forth, CP/M, and Basic? A CPU is a necessity ...