Restoring The E&L MMD-1 Mini-Micro Designer Single-Board Computer From 1977
[CuriousMarc] and [TubeTimeUS] team up for a multi-part series on YouTube, restoring the E&L MMD-1 Mini-Micro Designer.
The E&L MMD-1 is a microcomputer trainer and breadboard for the Intel 8080, notable as the first ever single-board computer.
As mentioned in the video, E&L invented the breadboard with a middle trench for ICs, familiar to us today, with a US patent 228,136 issued in August 1973.
- Support circuits for control logic
- Clock and bus drivers
- Voltage regulator and memory decoder
- Memory and I/O decoder
- Keyboard encoder and three 8-bit ports
- Octal keyboard and other support interconnects
Authors resume: Restoration of 1977 single-board computer.
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