Unseen family photographs of Alan Turing are to be published for the first time as part of a new biography written by his nephew. The pictures, published in Sir Dermot Turing’s new book ...

Alan Turing was an English mathematician, wartime code-breaker and pioneer of computer science. Photo: Alan Turing with two colleagues and a Ferranti computer in January 1951. Turing had ...

Image: Alan Turing was 'embraced for his brilliance and persecuted for being gay', GCHQ's chief says. Pic: AP Security features on the new note include two windows and two-colour foil which ...