This book brings together insights into the new and considerably higher-tech levels of audiovisual equipment and materials, and the admittedly limited things non-technicians can and should do to assure delivery of the instructional program. Extensively illustrated with diagrams and photographs, Volume II goes into VCRs, with considerable additional emphasis on cable and distribution systems. A number of preventive maintenance and diagnostic approaches are discussed for classroom computers. Looking toward the future, the authors also treat audio compact discs and videodisc technology.