We all know you can build a computer out of relays, and if you’re a regular reader of Hackaday, you’ve probably seen a few. Actually designing and fabricating a computer built around relays is another ...

Computers built using discrete logic chips? Seen it. Computers from individual transistors? Impressive, but it’s been done. A computer built out of electromechanical relays? Bring on the ozone! The ...

This mini-series of articles describes how to build a computer’s CPU (central processing unit) out of relays. “Y” in English sounds like “guay” in Spanish (my mother tongue), a colloquial expression ...

(NBC) - Two astronauts are busy making repairs to a critical computer relay box aboard the International Space Station. Expedition 51 Commander Peggy Whitson and Flight Engineer Jack switched their ...

CAPE CANAVERAL – Rain and thick clouds scrubbed shuttle Endeavour’s planned liftoff Monday. Mission managers will decide this morning whether a faulty computer relay will keep the spaceship grounded ...

Astronaut Koichi Wakata tweeted this photo of one of two NASA astronauts spacewalking on April 23, 2014. He wrote: "Rick [Mastracchio] and Steve [Swanson] did a fantastic job on the spacewalk today." ...

Once you’ve seen this beauty of a relay computer in action, you’ll find it hard to resist the lure of building something similar yourself. Once you’ve seen this beauty of a relay computer in action, ...