This article defines three separate categories of microcomputers--personal, desk-top, multi-user devices--and relates storage capabilities (expandability, floppy disks) to library applications. Highlghts include de facto standards, operating systems, database management systems, applications software, circulation control systems, dumb and…

This third article in a five-part series focuses on personal computer software (instructional packages for the computer itself). Topics covered include 11 categories of microcomputer software, evaluation and selection, purchase, version numbers and upgrades, copy protection, disk operating system commands, preparation of master disk, batch files,…

Details distinction between digital and analog data, advantages of analog storage, and optical disc use to store analog data. Configuration and potential of three levels of laser disc systems are explained. Selection of display devices for use with laser disc systems and accessing audio data are addressed. (Continued in next issue.) (EJS)