Not a reliable source - some of the answers are glaringly wrong. For example the first electronic computer was not Eniac, which came 29 months after Colossus Mk 1 (which was the first unless the Atanasoff-Berry device, which was a few years earlier yet, counts as a computer). Or if "electronic computer" means a stored-program device, Eniac wasn't an electronic computer at all and the first one was the Manchester Baby.