Comparison of dot matrix impact printers details price, matrix density, speed, print sizes, feed width, interface connectors, and true descender characteristics. Dot matrix versus preformed characters, maintenance and repair, installing printers at microcomputer workstations, value comparisons, and descriptions of specific printers are…

This discussion of factors involved in the presentation of text, numeric data, and/or visuals using video display devices describes in some detail the following types of presentation: (1) visual displays, with attention to additive color combination; measurements, including luminance, radiance, brightness, and lightness; and standards, with…

The differences between the media of books and computers lies partly in the way in which information is displayed, rather than in the content of the information itself. The term "legibility" denotes how specific physical characteristics of a display affect visual fatigue, reading speed, and ultimately comprehension. Some of these…

Describes various new computer graphic display capabilities (e.g., animation of graphics and text, direct manipulation of on-screen graphics elements) and reviews relevant literature that could assist in determining how these new capabilities could be used effectively in computer assisted instruction applications. (Author/MBR)

This investigation of the encoding features of graphs begins with a description of a cognitive framework which allows designers to factor into the process of designing displays how people interpret the information found and what display properties are responsible for this interpretation. The framework also provides a performance measure for use in…

Some of the major trends in the merging of videotex and personal computer technology are outlined in this promotional brochure, one of 10 in a series on videotex, a system which uses standard transmission links to transmit information in text and graphics to a television set or computer monitor. Topics addressed include the NAPLPS standard (North…

Presents an overview of current data gathering and analytical techniques for author cocitation analysis (ACA). Highlights include selection of the author set; retrieval of cocited author counts; multivariate analyses, including multidimensional scaling; data display techniques; an example for macroeconomics; interpretation and validation of…

This four-section paper begins with a brief description of videotex and the paths its development has followed during its short lifespan. The second section examines how videotex systems should present and display information, and how such information should be internally organized so that it is maximally useful for the reader/user. The analysis,…

Presents detailed guidelines based on the literature for screen layout and design of online catalogs, and discusses the potential advantages in terms of number of transactions per hour and user satisfaction. Further research questions are suggested and an extensive bibliography is provided. (CLB)

Focuses on the multiple design issues involved in creating successful menu selection systems: semantic organization, response time, display rates, shortcuts for frequent users, titles, phrasing of menu items, graphic layout, and selection mechanisms. Pop-up and embedded menus, experimental results, and design guidelines are also covered.…

One in a series of 10 promotional publications on videotex, this document describes both videotex and teletext and illustrates with actual examples how educators are using these new tools. Topics discussed include the educational roles permitted by the standardization of videotex and teletext; characteristics of the North American Presentation…

Describes videotex development; discusses optimal internal organization, visual display, and presentation of information on videotex screen; addresses policy issues of equity, privacy, and costs that affect instructional use of videotex; outlines videotex field trials and experiments within education; and draws conclusions on significance of…

This column discusses the problem of character standard for computer keyboard, screen, and printer in relation to foreign language capability. Some solutions are offered, such as built-in screen flexibility, a graphics adapter with "font downloading" capability, and a new, relatively inexpensive graphics board--the multifont by Hash-Tech. (AMH)

Graphical methods for displaying data, as well as available computer software and hardware, are reviewed. The authors have emphasized the types of graphs which are most relevant to the needs of the National Center for Education Statistics (NCES) and its readers. The following types of graphs are described: tabulations, stem-and-leaf displays,…

This discussion of the use of images in learning processes focuses on recent developments in optical storage disc technology, particularly compact disc read-only (CD-ROM) and optical video discs. Interactive video systems and user interfaces are described, and applications in education and industry in the United Kingdom are reviewed. (Author/LRW)