Bell-labs released their cardboard computer, the Cardiac, in 1968 http://en.wikipedia.org/wiki/CARDboard_Illustrative_Aid_to_Computation http://en.wikipedia.or

Bell-labs released their cardboard computer, the Cardiac, in 1968 http://en.wikipedia.org/wiki/CARDboard_Illustrative_Aid_to_Computation http://en.wikipedia.org/wiki/CARDboard_Illustrative_Aid_to_C...