In January of 1954, supported by the military, engineers from Bell Labs built the first computer without vacuum tubes. Known as TRADIC (for TRAnsistorized DIgital Computer), the machine was a mere ...

It’s not the only vacuum tube computer on display in a museum; the Colossus replica in Bletchley Park is also very much worth seeing. That exhibit even inspired the design of an entirely new ...

[Usagi Electric] is breathtakingly close to having his Bendix G15 vacuum tube computer up and running ... the big green “Reset” button. The first attempt was stymied by a blown fuse.