The Nazis literally used custom made IBM punch cards to keep records of their undesirables. I know society at large was mostly unaware of computers, but did they did play a role in WWII. We see cipher devices like Enigma in historical documentaries and fiction, but we don’t see the computers that calculated bomb and rocket trajectories, and least of all the Nazi’s database which seems quite well buried in footnotes, though it was critical in the holocaust.