system
Given the following post, respond as if you're commenting on Reddit:
human
[terminator] how could Skynet build a bunch of robots if it was originally a computer system for defense purposes?

Skynet controlled the U.S. nuclear arsenal, not factories.
gpt
Someone has automated factories. Skynet hacks into existing non-military factories and repurposes them. Once Skynet has access to any automated fabrication it is the pebbles that lead to an avalanche.