[MinnowBoard] GSoC-2015 WITCH-on-a-Board

Anders, David david.anders at intel.com
Tue Mar 10 19:47:13 UTC 2015

Greetings All,

For those interested in the Google Summer of Code WITCH-on-a-Board, I'd like to share some background information. The WITCH is considered the older ORIGINAL working computer in the world. It is a fascinating machine in the aspect that is has all the components of a modern system, but implemented with cold cathode tubes and relays. Oh, and there is one more unique item: it is a decimal based computer NOT binary based! An ongoing documentation and educational project based around the WITCH has been created to coordinate efforts. The project is known as WITCH-E (http://www.witch-e.org). last summer we had a young student create a javascript based emulator for the WITCH, however there are some limitations to what can be done in a browser and it does limit the amount of hardware experimentation. In a past project a complete replica of the ENIAC was created in a single chip as a research project(http://www.seas.upenn.edu/~jan/eniacproj.html). In preparation for developing this ENIAC hardware, a solid and complete emulator was created in order to understand the nature of the design. As the WITCH-E project intents to create replica hardware, the first task is to get a similar emulator created for the WITCH. The known (public) documentation for the WITCH is available through the project website.


if you have additional questions, please ask them on this thread so the responses can be shared!

Dave Anders
Aka prpplague

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