The family of an electrical engineer said it was "really quite extraordinary" to discover he had worked on the Colossus codebreaking computer in World War Two. The contribution of Fred Martin at ...

GCHQ has released never before seen images of Colossus, the UK's secret code-breaking computer credited with helping the Allies win World War Two. The intelligence agency is publishing them to mark ...

Jean Valentine, a former Bombe machine operator, shows a drum of the machine in Bletchley Park Museum in Bletchley, England. ALESSIA PIERDOMENICO/Reuters/Corbis The ...

Bletchley Park is a name on everyone’s lips at the moment thanks to the generous coverage stemming from a film that rightly celebrates the role played by men like Alan Turing. But what about the women ...