The use of microcomputers as communication aids for physically handicapped children and adults is described. Characteristics of stationary speech output communication aids addressed include encoding by single switch users, an easy to change vocabulary through the use of an "editor," capability to speak via synthesized speech in addition to printing the message, capacity for correcting an entry before the message is produced, efficiency in producing messages, and a "grabber" feature that allows the user to respond quickly to conversation. Modifications in software, hardware, firmware, and keyboards are cited that allow single switch and other nonkeyboard users to operate all keyboard software for the Apple II. (CL)