Colossus: the World's First Electronic Computer - a podcast by BBC World Service

In February 1944, the world's first electronic computer began attacking encrypted Nazi messages, from the secret British codebreaking centre at Bletchley Park. Hear from one of the engineers tasked with building and maintaining Colossus during World War Two.

Further episodes of Witness History: World War Two

Further podcasts by BBC World Service

Website of BBC World Service