Describes three stages of the automation of information processing systems by combining the concept of the exponential growth of operational capabilities with three characteristics: computational capability, ability to store data, and ability to communicate data. The growth of fiberoptic technology is described as beginning the third stage. (EM)

Six articles on computers in libraries discuss training librarians and staff to use new software; appropriate technology; system upgrades of the Research Libraries Group's information system; pre-IBM PC microcomputers; multiuser systems for small to medium-sized libraries; and a library user's view of the traditional card catalog. (EM)