The Cyberdyne Building was a four-story research building belonging to Cyberdyne Systems in Los Angeles. In 1995, Sarah Connor, John Connor, Miles Dyson, and a T-800 destroyed the building with a massive amount of explosives in a preemptive strike against Skynet in order to destroy Dyson's work of Artificial intelligence and Neural Net CPU development. Dyson had to commit suicide by staying behind to trigger the detonator, which destroyed the lab so that the technology cannot be used to create Skynet.