Terminator

Apparently.

Heck, maybe the military already had killer robot factories set up, and Skynet only had to communicate across the hardened-in-case-of-nuclear-strike military lines. Or maybe Skynet had a few versatile robot “attendants” which were able to go in person… Er, in robot to the factories to refurbish them.

You mean a high-tech company like Cyberdyne’s never heard of off-site backups?

Well, evidently, they have. Ergo, T3: Rise of the Machines.

But since Dyson quits the project and helps to destroy his research, the project is set back by another decade, and Skynet goes online on the original date!