Brief description of videotex systems is followed by recommendations for the design of database structure, command language, and screen format. How users search through the database is described and evaluations of the underlying tree structure are reviewed. Information sources on other aspects of videotex besides usability are listed. (MBR)

Details a series of tests conducted by the Research Libraries Group, Inc., to evaluate IBM clones i.e., computers designed to use hardware and software originally intended for IBM microcomputers. The results of evaluations of several personal computers, using the criteria of performance, aesthetics, ergonomics, and documentation, are reported.…

Considers demands on the reader of printed material displayed on the video screen. Ways that electronic media can engender and foster reading skills are discussed, including use of graphics in video displays and ways educationalists may contribute to development of videotext and software to teach reading. (40 references) (MBR)