[cctalk] Re: Relay computers

Bob Rosenbloom started to make a relay computer, using pc boards, but found that typical dip relays talk to each other ( leaky magnetic fields ) . Konrad Zuse made several attempts but making useful electromechanical memory was his down fall. As a kid, I used a handful of radioshack relays to make a sequenced electrical lock. One had to enter four each four bit numbers to turn on the lock. Any wrong number and you had to start over. I think that was first the first time I did a logical design. You'd set the 4 toggle switches for the next number in sequence and then enter it. Not a computer but then, I was just a kid. Dwight