According to the films, the Terminators were created by Cyberdyne Systems, and put at the disposal of an artificially intelligent computer, Skynet, which then rebelled and used them to wipe out the remains of humanity.

Did Miles Dyson create Skynet?

Miles Dyson is an expert in cybernetics at Cyberdyne Systems Corporation as the Director of Special Projects. ... Dyson is the man most directly responsible for Skynet's creation, which would lead to Judgment Day.

Did Skynet create Terminator?

Skynet is a fictional artificial neural network-based conscious group mind and artificial general superintelligence system that serves as the antagonistic force of the Terminator franchise. In the first film, it is stated that Skynet was created by Cyberdyne Systems for SAC-NORAD.