Richard Stallman, who published his manifesto in March of 1985, has been known to say that, “with software, either the users control the program, or the program controls the users.”
If Skynet comes to fruition, it will probably use a Linux base, and the same is true for the cyborgs it will produce. You don't want to have something that can break down or look for updates right in the middle of an assault for the last base of the human resistance.
This begs the question: Is Linus Torvalds still alive then to release kernels every Sunday or Skynet has adopted the naming systems and the GPL licenses for the OS used for its cyborgs?