2 2010: Odyssey Two/The Year We Make Contact.Mission Control did not want the crew of Discovery to have their thinking compromised by the knowledge that alien contact was already real.) With the crew dead, HAL reasons he would not need to lie to them. In every person tested, a deep-seated xenophobia was revealed, which was unknowingly replicated in HAL's constructed personality. (This withholding is considered essential after the findings of a psychological experiment, 'Project Barsoom', where humans were made to believe that there had been alien contact. The novel explains that HAL is unable to resolve a conflict between his general mission to relay information accurately, and orders specific to the mission requiring that he withhold from Bowman and Poole the true purpose of the mission.

HAL speaks in a soothing male voice, always using a calm tone. HAL is capable of many functions, such as speech, speech recognition, facial recognition, lip-reading, interpreting emotions, expressing emotions, and chess, in addition to maintaining all systems on Discovery. HAL is a HAL 9000 computer with a human personality. He is the hidden main antagonist of 2001 and returns as a-soon-to-be-redeemed villain in 2010.

HAL 9000, more commonly called 'HAL', became operational at the HAL plant in Urbana, Illinois, on January 12, 1992. The HAL ( Heuristically programmed ALgorithmic Computer) 9000 computer is an artificial intelligence and the onboard computer on the spaceship Discovery One.

3001 space odyssey