Does not compute

"Does not compute", and variations on it, is a phrase often spoken by computers, robots and other artificial intelligences in science fiction works of the 1960s to 1980s. The phrase indicated cognitive dissonance on the part of the device, conventionally leading to its self-destruction. The phrase "does not compute" and robots who self-destruct when considering emotions or paradoxes is frequently satirized in popular culture. The phrase was first used as a catchphrase by the television show My Living Doll in 1964. It was then popularised in Lost in Space (1965), along with "Affirmative!", "Warning! Warning!" and "Danger, Will Robinson!"