Skynet
Sarah Connor: Reese. Why me? Why does it want me?
Kyle Reese: There was a nuclear war. A few years from now, all this, this whole place, everything, it’s gone. Just gone. There were survivors. Here, there. Nobody even knew who started it. It was the machines, Sarah.
Sarah Connor: I don’t understand.
Kyle Reese: Defense network computers. New... powerful... hooked into everything, trusted to run it all. They say it got smart, a new order of intelligence. Then it saw all people as a threat, not just the ones on the other side. Decided our fate in a microsecond: extermination.