A single-instruction CPU designed and built by Jack Eisenmann.


This computer has been fully designed and constructed. I have finished making the operating system and test applications. Click on the links below to see more information.

General Architecture Description
Photo Gallery
Video Demonstrations
Machine Emulator
Circuit Schematic
Breadboard Layout
List of Chips to be Used
Microcode Specification
EEPROM Programmer Using Arduino
Fabrication Code Compiler
Piston Code Compiler
DUO OS 2 Source
Flash Programmer Using Arduino
Build Your Own DUO Compact

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