Alan Turing is considered the father of computer science. He proposed a test called “The Imitation Game” that might finally settle the issue of machine intelligence. The first version of the game didn’t use any kind of computer intelligence. Imagine three rooms, each connected via computer screen and keyboard to the others. In one room sits a man, in the second a woman, and in the third sits a person named “judge”. The judge’s job is to decide which of the two people is the man. 
The man will attempt to help the judge, offering whatever evidence he can. The woman’s job is to trick the judge, so she will attempt to deceive him, hoping that the judge will erroneously identify her as the male.
The next version of the “imitation game” is aimed to identify a computer, intended as an artificial intelligence devoted to trick an human being. The opponent is a person, a real human being of male or female gender. The judge can be another person. 
Turing aim was to start a new frontier in computer science, Artificial Intelligence, in which computers show an authentic “human” behaviour. According Turing a computer is intelligent, if it is winning “The Imitation Game”.