John Graham-Cumming, a leading British computer expert who launched the campaign, said: "I think that Alan Turing hasn't been recognised in Britain for his enormous contribution because he died in his forties and almost certainly because he was gay.Campaign to win official apology for Alan Turing (Thanks, Robbo!)
"It is atrocious that we don't recognise this man and the only way to do so is to apologise to him. This man was a national treasure and we hounded him to his death.
"One of the things for people in the computing world is that he was part of the war effort but we don't give him recognition in the same way as other heroes. To me, he was a hero in the second world war."
Since his death, plaques, buildings and statues have been raised in Turing's honour. The computing world's equivalent of the Nobel Prize has been called the Turing Award since 1966.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.