Moreover, they make the point in one of the episodes (3x06, "Booby Trap", IIRC) that the ship's computer's intelligence is INTENTIONALLY limited. The reason tha

Moreover, they make the point in one of the episodes (3x06, "Booby Trap", IIRC) that the ship's computer's intelligence is INTENTIONALLY limited. The reason that Data is unique isn't simply due to his status as a fully sapient being. It's because of his positronic brain.