Wikipedia: "I Have No Mouth, and I Must Scream" is a postapocalyptic science fiction short story by Harlan Ellison. It was first published in the March 1967 issue of IF: Worlds of Science Fiction. It won a Hugo Award in 1968. The story takes place 109 years after the complete destruction of human civilization. The Cold War had escalated into a world war, fought mainly between China, Russia, and the United States. As the war progressed, the three warring nations each created a super-computer capable of running the war more efficiently than humans. One day, one of the three computers becomes self aware, and promptly absorbs the other two, thus taking control of the entire war. It carries out campaigns of mass genocide, killing off all but four men and one woman." Read on
