Kruton 9000
Kruton 9000 is a computer that can be found in car mechanic garages in three GTA games. The first appearance of the computer is in Grand Theft Auto III in Joey's Garage only visible during cutscenes, the second is in Grand Theft Auto: Vice City in the Sunshine Autos Import Garage, and the third is in Grand Theft Auto: San Andreas in Michelle's garage.
Trivia
The computer's name is similar to the 2001: A Space Odyssey's villain computer (HAL 9000).