virginia madsen
i reckon the hotness of Virginia Madsen was first revealed when she played Princess Irulan in Dune. Her faux english accent was the icing on the cake.

more skynet
I guess I can understand leaving Skynet off the list to the extent that, unlike all the other computers on the above list, we never actually get to meet Skynet, or hear it speak.(At most, we glimpse it in the third movie as an apparent computer virus).

no skynet?
Terminator: The Skynet Funding Bill is passed. The system goes on-line August 4th, 1997. Human decisions are removed from strategic defense. Skynet begins to learn at a geometric rate. It becomes self-aware at 2:14 a.m. Eastern time, August 29th. In a panic, they try to pull the plug.