Cardboard and Demonstrator "computers"
Logic demonstrators illustrated some of the logical principles of computer circuits, but were incapable of automatic operation or non-trivial calculations. Some were literally cardboard, others used combinations of switches and lamps to show how logical operations worked. Some products demonstrated logical operations purely mechanically.
- CARDboard Illustrative Aid to Computation cardboard computer logic demonstrator
- Geniac, non-electronic logic demonstrator
- Minivac 601, logic trainer that demonstrated computer circuits
- Digi-Comp I, mechanical logic demonstrator
- Digi-Comp II, mechanical logic using marbles
Read more about this topic: List Of Home Computers
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