1951 - The NIMROD computer was presented at the Festival of Britain

On May 5, 1951, the NIMROD computer was presented at the Festival of Britain. Using a panel of lights for its display, it was designed exclusively to play the game of NIM; this was the first instance of a digital computer designed specifically to play a game.[4] NIMROD could play either the traditional or "reverse" form of the game.

Fonte: Wikipédia