Terry was (and still is) a computer located in the library in Mixed Culture School. He and five others made up the Nerd Clup at Mixed Culture School.
Terry is a computer model of the 80's. They are relatively cheap these days but used to be high quality stuff. The Terry computer model is actually a partner company of the VELL Security System. Terrys are located everywhere that can't afford to buy superior technology (such as Technopark).