Colossus Digital Computer Honored as IEEE Milestone at Bletchley Park

By B. Jack Copeland · IEEE Spectrum · 2026-07-22

IEEE Spectrum reports that the world’s first large-scale programmable digital computer, Colossus, is receiving formal recognition for its role in deciphering high-level German communications during World War II. Developed by engineer Tommy Flowers to defeat the complex Lorenz enc

IEEE Spectrum reports that the world’s first large-scale programmable digital computer, Colossus, is receiving formal recognition for its role in deciphering high-level German communications during World War II. Developed by engineer Tommy Flowers to defeat the complex Lorenz enc