This annual report provides information on instructional programs at both the undergraduate and graduate levels and the computing facilities of the Department of Computer and Information Science, and briefly describes the interactions of the department within the university and within the professional community. A list of students awarded doctoral degrees in 1979-80 includes the dissertation title and adviser's name; abstracts of the dissertations are presented in a separate section. Ongoing research projects in five areas of computer and information science--sponsored by both the university and external agencies--are described in some detail, and a bibliography is provided for each area. Appendices include statistical data on the current status and history of the department, a list of courses offered by number and title, information on department faculty and staff members, a list of seminars conducted during the year, and lists of publications, recent technical reports, and activities of faculty and staff. (RAA)