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 ... at more than 2 metres tall, Colossus required ...

home to Britain's code-breakers during World War II. While war-time Bletchley's work was secret, its modern-day successor, GCHQ, now operates at least partly in the public eye with the ...

Historians say their work shortened World War II by as much as two years. Colin said that among new recruits to GCHQ, “we now hear more and more that they first heard of GCHQ through puzzling.” ...

There’s an old joke that the world’s greatest ... well as back to the Great War. So what’s inside the Doughnut? National Geographic managed to get a tour of GCHQ and if you have any interest ...

At the top of the British electronic intelligence agency is the Government Communications Headquarters (GCHQ), a very public ... a fascinating aspect of World War I communications technology.