To help educational administrators and policymakers use computers effectively, this handbook provides an overview of computers and their role in education. Using a question-and-answer format, the author first defines computers, interactive computing, computer hardware and software, and programing languages. The same format is followed in the subsequent discussions of the kinds of problems computers solve; the instructional, administrative, and research uses of computers; computers' impact on curricula; computer-assisted instruction and other instructional uses; computer literacy; educational uses for calculators; and the barriers, goals, and costs involved in the instructional use of computers and calculators. A brief guide to periodical literature is added to help educators learn more about computers. A glossary at the end defines terms frequently used in computer education. (Author/RW)