This document, intended for faculty at the University of Illinois College of Veterinary Medicine, provides information about the PLATO computer-based instructional system and instructions for participating in lesson preparation. The physical components of the PLATO system and the PLATO IV terminals, student consoles, and teaching stations are described. The educational characteristics and instructional methods of the PLATO system are discussed. Also discussed are the background, rationale, organization, and functions of the College of Veterinary Medicine PLATO Program. Instructions are given for developing a lesson on PLATO, including probable time required. (MH)