Computers, programming and computing history.
> HELLO WORLD
>
MULTIVAC> LET THERE BE LIGHT!
ROBOT B9> DANGER WILL ROBINSON DANGER!
HAL 9000> I'M SORRY DAVE, I'M AFRAID I CANT DO THAT
HAL 9000> THIS CONVERSATION CAN SERVE NO PURPOSE ANYMORE, GOODBYE
WOPR > SHALL WE PLAY A GAME?
DEEP THOUGHT > FORTY-TWO