“Computer,” said Zaphod, “tell us again what our present trajectory is.”

“A real pleasure, feller,” it burbled, “we are currently in orbit at an altitude of 300 miles around the legendary planet of Magrathea.”

“Proving nothing,” said Ford. “I wouldn’t trust that computer to speak my weight.”

“I can do that for you, sure,” enthused the computer, punching out more tickertape. “I can even work out your personality problems to 10 decimal places if it will help.”

Hitchhiker’s Guide to the Galaxy by Douglas Adams (1979)