Electric Dreams (1984)

Rather silly rom com from the early 80s. Dorky guy buys a home computer system (featuring one of those old-school classic acoustically coupled modems) that somehow becomes sentient after he pours champagne into it (don't ask) and then vies with him for the affections of the cello-playing love interest from the floor above (aside: she is played by a young Virginia Madsen, who more recently played the love interest of geeky wine connoisseur and writer Miles in Sideways). The highlight, and main legacy of the film, is probably the song "Together In Electric Dreams" by Giorgio Moroder (who also has a brief cameo).