A 4 Bit Computer, built from TTL chips

I am always on the lookout for people who build interesting computers from scratch. Here’s another nifty one: a 4 bit CPU called the Duo 128 Elite by Jack Eisenmann. It’s a pretty obscure little architecture, but is cool enough to play pong on a 8×8 LED display.

DUO 128 Elite



2 thoughts on “A 4 Bit Computer, built from TTL chips

  1. Darell C. Phillips

    Mark, I’m glad I found your site. I found the detail on your “About Myself” very interesting.

    Mosaic_Hyde (Darell)

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