You're the brain and central nervous system of the ship.
5 seconds sound clip from the 2001: A Space Odyssey (1968) movie soundboard.
You can hear this line at 01:01:39 in the Blu-ray version of the movie.
Quote context
[...]
- We next spoke with the HAL 9000 computer whom, we learned, one addresses as Hal.
- Good afternoon, Hal. How's everything going?
- Good afternoon. Everything is going extremely well.
- You're the brain and central nervous system of the ship.
- And your responsibilities include watching over the men in hibernation.
- Does this ever cause you any lack of confidence?
- Let me put it this way. The 9000 Series is the most reliable computer ever made.
- No 9000 computer has ever made a mistake or distorted information.
[...]