The D16/M is a 16-bit computer built using HCMOS logic chips. It’s a thing of appeal from every angle thanks to the work [John Doran] put into the hobby project. but he didn’t just take pictures of the build and slap them on a webpage. He took the time to publish a exceptional volume of papers for the computer too!
The processor can execute a total of 73 instructions and uses a 100-pin bus for accessing main memory and peripherals. So far he has documented three different peripheral boards, each of which is pluggable thanks to an edge connector that accepts the board. The expansion boards are for system memory, serial communication port, and a creative four-position SD card interface for persistent storage.
Got a question about the system? He wrote a FAQ. want to learn from his evident mastery of wire-wrapping? He wrote a wire wrapping ideas guide. like we said, there’s a mountain of documentation and the links to it all are included in his main project page.
[Thanks Allen]