Calcutron-33: A Decimal Based RISC Microprocessor

An imaginary CPU with a decimal number system instead of a binary number system to make teaching and learning how a CPU works easier.

Erik Engheim

Aug 2, 2020·5 min read

Part of the Analytical Engine, a mechanical computer which used decimal numbers rather than binary numbers for calculations just like the Calcutron-33.

I have talked about the Little Man Computer LMC before, which is a really simplified CPU intended for teaching children or beginners the principles of…