This study examined the effectiveness of an educational computing course on preservice teachers' computer use and attitudes toward computers in education. The study used data from 16 (12 female, 4 male) preservice teachers who attended the University of Southern California. Results indicated that teachers' prior computer experience shapes their expectations from the course. Teachers reported that having a home computer, professor's willingness to teach, and the current utilization of technology in the schools at which they work also influenced their attitudes toward computers and their computer use. Based on the findings, several recommendations are offered for practitioners and teacher education institutions. (Author/AEF)