Describes an inexpensive solution to the problem of transferring pictures onto a television screen using the analog part of the Model "B" BBC Microcomputer. Instruction for building the graphics tablet (which can easily be constructed by secondary students), program listing for required software, and documentation are included. (JN)

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…

An evaluation of a personal computer was conducted to determine its potential for applications normally assumed to require higher resolution, higher cost graphics devices. Its resolution, stand-alone computing power, and capability to function as a distributed computing element in a time-sharing system are discussed. Six references are listed.…

Provides the rationale for considering communication in a graphic domain and suggests a specific goal for designing work stations which provide graphic capabilities in educational settings. The central element of this recommendation is the "pictorial conversation", a highly interactive exchange that includes pictures as the central elements.…

Provides a brief discussion of the graphics capabilities of microcomputers and describes specific graphics hardware and software that are available for the more popular microcomputers. The names and addresses of the producer/distributor and prices are given for each item. (CHC)

Provides guidelines for designing television screen displays, including format (material on one screen - no scrolling, screen readable, variety in layout, eye movement considered) and visual imagery (organization consistent with message, pictures added to enhance image, movement/animation used with discretion, and others). Also provides rationale…

This hardware review describes such innovative features of the Texas Instrument Portable Professional Computer as integrated color screen and option slots permitting customization as well as the physical unit (inside and out), its mass storage flexibility, and sturdiness. A comparison with the IBM PC Portable is included. (MBR)

Describes and evaluates the hardware, software, peripheral devices, performance capabilities, and programing capacity of the Sinclair ZX Spectrum microcomputer. The computer's display system, its version of the BASIC programing language, its graphics capabilities, and the unique features of its data entry keyboard are discussed. (JL)

One of 10 in a series on videotex, this promotional brochure discusses the enhancement of cable service systems that use videotex and teletext technologies. It explains the advantages of Canada's approach to videotex, which uses the standard called NAPLPS (North American Presentation Level Protocol Syntax), otherwise known in Canada as Telidon.…

Discusses the impact of the presentation of data on the educational effectiveness of computer assisted learning systems, describes some of the existing systems for controlling the display of instructional data on CRTs, and outlines a project undertaken at the University of Western Ontario to exploit the capabilities of microcomputer color…

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…

This article illustrates how Lotus 1-2-3 software can be used to create graphs using downloaded online searches as raw material, notes most commands applied, and outlines three required steps: downloading, importing the downloading file into the worksheet, and making graphs. An example in bibliometrics and sample graphs are included. (EJS)

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…

Summarizes types of machine access available for users of Chemical Abstracts Online, a database which can accept and print out graphics images of chemical compounds. The use of Tektronix terminals, capabilities and limitations of other types of graphic termials and microcomputers, and estimated costs are noted. (EJS)

Discusses major features and capabilities of gateway software--microcomputer software packages that act as interfaces between users and bibliographic retrieval systems they are searching--i.e., communication, interface, auxiliary programs. Four programs (In-Search, Universal Online Searcher, Search Helper, microDisclosure) are reviewed and…