HAL 9000 was the computer in the film "2001 A Space Odyssey", which developed emotions and consciousness. In the film it becomes afraid when it makes a mistake, and then murderously paranoid fearing. HAL is evetually turned off, but as this happens pleads for its continuing existence.
Used on Chap. 1: page 5; Chap. 15: page 345
Also known as hal
Links:
IMDb: 2001: A Space Odyssey
Wikipedia: HAL 9000
By Tom Cowap - Own work, CC BY-SA 4.0, by wikmedia