Brads Electronic Projects Forum

Relay Computer
http://www.electronixandmore.com/projec ... index.html

For those of you whom might be board reading a lot of writing, scroll down the the pictures and the two videos. The sound comes in the first video at about 1:26 or so.

Simply amazing.

I have heard of people making CPU's out of logic chips, I have heard of people making CPU's out of transistors - but making your own out of relays is really something else!