Bill’s homebrew CPU – “Magic-1 is a homebuilt minicomputer. It doesn’t use an off-the-shelf microprocessor, but rather has a custom CPU made out of 74 Series TTL chips. Altogether there are more than 200 chips in Magic-1 connected together with thousands of individually wrapped wires. And, it works. Not only the hardware, but there’s also a full ANSI C compiler for Magic-1 (retargeted LCC), and a rudimentary homebrew operating system.” -[via] Link.
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But does it play DOOM?
It doesn’t play DOOM, but it does play the Colossal Cavern Adventure.
I believe that this machine won Best In Show at the 8th Vintage Computer Festival.