Hi, I'm trying to remember the title to a movie I saw a few years ago. It was made sometime in the late 60's, early 70's (I think). Its about a couple who lives in a house where everything is ran by a computer. The husband works for a company where he designed a computer with a personality that comes to life and takes over his home and holds his wife captive.

Demon Seed (1977) (http://www.imdb.com/title/tt0075931/)