The Digital And Video Interactive Device (DAVID) interactive system was developed at the National Technical Institute for the Deaf in the 1970s for the purpose of enhancing instruction in audiology and speech pathology for deaf students at the postsecondary level. The DAVID system incorporates a minicomputer with a disk drive, a videotape recorder and player with a built-in microcomputer, a video monitor, prepared videotapes, and a keyboard for student input. The system permits control of auditory stimuli, use of moving and colored images, rapid play and replay of stimuli, individualization of instruction, active student participation, and gathering of data from students. It is also portable and low in cost. This document discusses the components of the system, explains why videotape rather than videodisk technology was incorporated, and tells how the system was tested. Also described is a study currently testing the DAVID system's usefulness in evaluating speech-reading instructional strategies. (PGD)