project is presented on the John's Basement channel on YouTube. A Z80 Retro! playlist contains much detail about all aspects of this project including the circuit boards, CP/M, the BIOS, and a video ...

What’s way more impressive is designing a complete computer system from the ground up, as [Joshua Coleman] just did when he built the Coleman Z80. And when we say “from the ground up”, we ...

Even in an age of huge teams of integrated circuit designers working with computerized tools rather than the lone geniuses of old with their hand drafting, we can still see little flashes of ...