This paper describes one approach to providing communication aids, environmental controls, and computer access systems to handicapped children. The paper begins by defining "assistive device" and "rehabilitation technology." Service delivery issues include funding of high-cost device systems and provision of ongoing student evaluation, training, and follow-up therapies. The Pennsylvania Special Education Assistive Device Center has addressed these issues by developing a critical mass of technology availability and awareness in a segment of the preschool- and school-aged population. With adequate equipment, technical support, and training opportunities, a strong local network of expertise is formed. Using this approach, economies of scale and a cost-effective, ongoing service delivery system are being built. The Center has focused on communication, writing, and computer access aids more than on sensory, environmental control, mobility, or independent living aids. The Center operates an assistive device loan program. This program emphasizes cooperative relationships among agencies and students, local education agency responsibilities for insuring the equipment and guaranteeing its availability to students, and ongoing training activities. (JDD)