The point is, The Terminator hasn't exactly done a lot to endear people to the idea of thinking machines. I find something interesting about the film's portrayal of AI, though, despite the generally bleak outlook of the franchise: the way that it defines intelligence primarily as the ability to learn.
In Terminator II, there are three AIs that get focus. That of Arnold Schwarzenegger's Terminator, Robert Patrick's T-1000, and the unseen Skynet. In all three cases, learning is among their primary abilities, and what makes them both unnervingly effective, and potentially similar to mankind. The Terminator himself talks about how the longer he spends observing people, the more effectively he will be able to blend in with them. As an infiltrator, his ability to be inconspicuous during his search for targets is paramount, and moreso than his enhanced strength and durability, this learning can be his greatest asset.
The T-1000, on the other hand, learns in a different way. In order to take the shape of objects or people, he must first touch them, to familiarize himself with their inner workings and overall shape. Once again, camouflage is a chief concern, as well as the ability to produce necessary weapons. Overall, the entire shapeshifting repertoire of the T-1000 comes out of an even more pronounced ability to learn.
Finally, Skynet itself. It never "appears" in the film, though it's hard to say how exactly it might appear. The way that it's described, Skynet's consciousness is distributed over a massive satellite defense network - though once again, its origins gesture towards a core in heuristic processes. When the Terminator is filling the human cast in about the history of Skynet, he mentions that the primary catalyst for its rise to sentience was the way that it was exposed to an entire world's worth of stimuli, and with that amount of information, it's learning and growth increased geometrically, until it achieved sentience. The implications of this origin are twofold: first, that Skynet continues to grow more learned with every passing day. If it crossed one threshold into sentience, then might it not also cross an as yet undertimined future threshold? Secondly, while the ability to learn does not necessarily make something intelligent, intelligence requires the ability to learn.





