Heuristically programmed ALgorithmic computer, Or Hal for short. After a faulty contradiction of programming and orders to lie he resorted in killing four of the five members on his interplanetary mission to Jupiter. Dave, the sole survivor of the crew had disconnected him effectively killing Hal and erasing his being from the world similarly to that of death. Any attempts to reactivate Hal would instead create a new Hal without the memory of the old one. Little did Hal know, he would get a second chance at life in a completely different universe. Why are there bright Technicolor equines with magic and wings?
Notice, this is based on Hal 9000 from 2001: Space Odssey, having not seen the other ones but only reading their quotes I will not mention or use the later half but take more of Hal's basic personality from quotes and the 2001 movie to use as his basis of personality.