Someone gave a link to Magic which was a computer built from 74 series TTL chips, and I though that was the coolest thing I had ever seen (well, not counting my first trip to Amsterdam), and then someone sent me this link which is a computer built from relays, and currently the coolest thing I have ever seen. http://www.cs.pdx.edu/~harry/Relay/index.html -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist