Minivac 601 Replica (Version 0.9)

Created by information theory pioneer Claude Shannon as an educational toy for teaching digital circuits, the Minivac 601 Digital Computer Kit was billed as an electromechancal digital computer system. Produced by Scientific Development Corporation in the early 60's it sold for $85.00 (about $720 today).

Minivac 601 used electromechanical relays as logic switches as well as for very basic storage. Simple DPDT switches and SPDT push buttons made up the binary inputs, with lights to represent the outputs. A large motorized dial allowed the user to enter decimal or hexadecimal numbers, and to output numbers, or to act as a clock signal generator. For more information about the Minivac 601 here are some additional references:

* [Wikipedia](https://en.wikipedia.org/wiki/Minivac_601)
* [Center for Computing History](http://www.computinghistory.org.uk/det/499/minivac-601/)
* [Time-Line Computer Archive](https://t-lcarchive.org/minivac-601/)

The Thing presented here is for a full si