CARDIAC: CARDboard Illustrative Aid to Computation

[Chris Chung]

This is very similar to the "little man computer" which is also an educational set and is more capable.

LMC, like CARDIAC is decimal based and very easy to explain and learn.

http://en.wikipedia.org/wiki/Little_man_computer

I actually developed a single-board computer two years ago that executes LMC instructions.

http://youtu.be/HNK9imVcz_E