Showing Colossus: The secrets of Bletchley Park's code-breaking computers by B. Jack Copeland

Colossus Shrouded in secrecy until recently, Colossus was the world's first fully-functioning electronic computer, built during the Second World War and used at Bletchley Park to crack the codes of high-level Nazi communications. This collection of essays delves into code-breaking, personal recollections, and declassified information. Full description