Presents a "family tree" of optical technologies with a list of definitions, and briefly discusses some of the issues relating to optical technologies and their use in libraries. (CLB)

Discussion of basic telecommunications concepts includes data terminal equipment, carrier equipment and data communications equipment. Guidelines offered for librarians planning the implementation of a telecommunications network address reliability and costs of equipment, requirements of the system, and ease of use of the system. (CLB)

Proposes a rationale to be used in comparing and evaluating alternative library computer catalogs, based on varieties of bibliographic data processed, kinds of indexes constructed, and desired search strategies. A glossary of terms related to computerized catalogs is appended. (Author/CLB)

Describes complementary characteristics of computing centers and libraries that could be combined to form the core of information support centers and discusses the possible impact on library processes and services. The use of telecommunications networks to reduce costs and increase efficiency in academic libraries is also examined. (CLB)