GrafTalk is a powerful, easy to use, business-oriented graphics package for producing pie, bar, and line-plot graphs. GrafTalk should run on nearly any CP/M-based system that drives a graphics device through serial/parallel output port. Discusses package installation, structure, documentation, and use, plotting scientific data, and comparison with…

General principles of computer graphics are reviewed, including discussions of display hardware, geometric modeling, algorithms, and applications in science, computer-aided design, flight training, communications, business, art, and entertainment. (JN)

Describes the construction and use of a microcomputer-based experimental system designed to examine the role of visual context in the analyses of data displayed in computer graphics. The responses of end users to changes in visual context of business graphics are examined, and future experiments are discussed. (Seven references) (LRW)