HAL 9000, the most advanced computer at the time, has the pivotal role in Arthur C. Clark and Stanley Kubrick's, 2001: A Space Odyssey.
The last episode in the movie (1968) has a spaceship and its crew heading to Jupiter. HAL is the on board computer that interfaces with the crew. They eventually realize that HAL is capable of error, and privately (in a pod) discuss disconnecting it. Although I am assuming, Deep Thought is more advanced than the HAL (after all, coming up with the ultimate answer is no easy task); HAL appears to overcome its handicap. I'm referring to its (assuming computers have no gender) hearing problem; why else would he have to read lips.
HAL is an acronym for Heuristically programmed ALgorithmic Computer.