Characteristics and advantages of database machines are summarized and their applications to library functions are described. The ability to attach multiple hosts to the same database and flexibility in choosing operating and database management systems for different functions without loss of access to common database are noted. (EJS)

Discusses the advantages of parallel processor computers in terms of expandibility, cost, performance and reliability, and suggests that such computers be used in library automation systems as a cost effective approach to planning for the growth of information services and computer applications. (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)