What was the full name of the computer in "2001: A Space Odyssey"?

HAL 9000 is a fictional artificial intelligence character and the main antagonist in Arthur C. Clarke's "Space Odyssey" series. First appearing in the 1968 film "2001: A Space Odyssey", HAL (an acronym of "Heuristically Programmed ALgorithmic Computer") is a sentient computer, or artificial intelligence (AI). HAL controls the systems of the Discovery One spacecraft and interacts with the ship's astronaut crew.

This depiction of advanced AI provides a pervasive menace in the film. While part of HAL's hardware is shown toward the end of the film, he is mostly depicted as a camera lens containing a red or yellow dot, instances of which are located throughout the ship. HAL 9000 is voiced by Douglas Rain in the two feature film adaptations of the Space Odyssey series. HAL speaks in a soft, calm voice and a conversational manner, in contrast to the crewmen, David Bowman and Frank Poole.

The picture shows Keir Dullea as astronaut Dave Bowman in "2001: A Space Odyssey."