That sounds interesting, what are the exact rules of this game? Are you only allowed to use components that actually existed at the time, or ones that might hav

That sounds interesting, what are the exact rules of this game? Are you only allowed to use components that actually existed at the time, or ones that might have existed? I.e., do you have to use a 6502, or can you design a better CPU, using modern knowledge, but considering old fabrication techniques?