The paper describes the development of a computerized symbol processing system which allows nonspeaking severely handicapped persons to create communication electronically. Two pilot studies investigated the use of Rebus and Bliss Symbols with either an Apple Graphics Tablet or the Power Pad, a peripheral which allowed users to activate the computer by touching the board with their fingers. Positive results included improved speed and accuracy of performance, enhanced motivation, and reported teacher and parent satisfaction. Three case studies illustrate the ability of multiply handicapped students to learn the use of the symbol processing systems in a relatively short time. (CL)