[Alan Turing]’s efforts with Colossus were top secret for years, and while that work built on earlier efforts in Poland, [Turing] has as much claim to be the father of computers as anyone.

Turing had previously been involved with the construction of both the Colossus, the electronic computer built at Bletchley Park during WW2, and, later, the Automatic Computing Engine. (SSPL/Getty ...