When I was a boy back in the Seventies, I loved to watch U.S. TV crime series like “Kojak.” Every time a murder occurred and the investigation got stuck, Kojak would say: “We’ve got to ask the computer!”
Then he and his team would go into a computer room and type in some clues on the crime, like male victim, brown hair, blue eyes, contusion on the back of the head caused by a blow with a blunt object.
Magnetic tapes in racks would spin back and forth and after a while the printer would start to rattle and print five or so names of suspects. Three of them would already have been in jail or out of the country and a fourth one probably dead at the time of the murder. Only one was at large. Kojak would tear the paper out of the printer — he knew exactly what to do next.