Minivac 601 Digital Computer Kit
was an eletromechanical digital computer product created by Claude Shannon
and sold by Scientific Development Corporation as early as 1961 as an educational kit for digital circuits. It used electrical relays as logic switches and for storage. It had a six-bit binary input/output array, consisting of simple switches and indicator lights and a dial to input decimal numbers.
- http://www.oldcomputermuseum.com/minivac_601.html Minivac 601 at www.oldcomputermuseum.com
- http://www.oldcomputermuseum.com/minivac_6010.html Minivac 6010 at www.oldcomputermuseum.com