Graphical perception is the visual decoding of the quantitative and qualitative information encoded on graphs. Some recent theoretical/experimental investigations of graphical perception are described, identifying certain elementary graphical-perception tasks that are performed in the visual decoding of quantitative information from graphs.…

Reviews the latest version of the SuperCalc spreadsheet, indicating that it now provides color graphics, two-key sorting, and database management functions (including Internal Rate of Return). Also indicates that the program is not copy protected, useful in trying to integrate a variety of programs. (JN)

Provided is a review of an educational software program called "Delta Drawing." Included are comments on how the graphics program works, programing features, comparison with LOGO, educational value, and availability. Indicates that as a powerful learning program, it is innovative and imaginative. (JN)

Provided is a complete listing (Applesoft Basic) for a children's spelling program. The listing includes a machine language music utility that plays short tunes and uses the Apple's two hi-res screens for animation. Also included is a program that allows pictures to be drawn and saved to animate other programs. (JN)

Presents a histogram drawing program which sorts real numbers in up to 30 categories. Entered data are sorted and saved in a text file which is then used to generate the histogram. Complete Applesoft program listings are included. (JN)

Describes digital video interactive (DVI), a new technology which combines the interactivity of the graphics capabilities in personal computers with the realism of high-quality motion video and multitrack audio in an all-digital integrated system. (MES)

This paper presents a BASIC microcomputer program that constructs the Tukey (1977) stem and leaf graph. Options within the LEAF program include a modified stem and leaf where the stem is split and a parallel stem and leaf graph where two separate sets of data are displayed from a common stem. (Author)

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)

Discusses the major reasons why microcomputers have not yet become commonplace in the arts and describes how the College of Communications and Fine Arts at Southern Illinois University (Carbondale) researched, planned, and implemented a college-wide computer technology program. (GEA)

Discusses how to use vector graphics programming on Apple microcomputers for creating animation. Secondary school students with programming experience should be able to master the essentials of the two-stage technique, especially if they have already worked with LOGO graphics. (JN)

Explains the use of a standard text-based database program (i.e., dBase III) to run external programs that display graphic files during a database session and reduces costs normally encountered when preparing a computer to run a graphical database. An example is given of a simple database with two fields. (LRW)

Learning how to create smooth animation on the computer is a two-step process. Step one (discussed in SE 539 133) involves creating shapes. In the second step, students animate their newly created shapes. The programing necessary to accomplish the animation is discussed. (JN)

Discusses various aspects, features, and uses of the Logo programing language. A comparison (in chart format) of several Logo languages is also included, providing comments on the language as well as producer, current price, number of sprites and turtles, computer needed, and whether debugging aids and list operations are included. (JN)

Describes a course designed to teach engineers how to accomplish computer graphics techniques on a limited scale with the Apple computer. The same mathematics and program code will also function for larger and more complex computers. Course content, instructional strategies, student evaluation, and recommendations are considered. (JN)

Presents activities and program listings to print ASCII characters, examine the "IF" command (Pascal), change colors of a word on the screen (Atari), and to create a drawing tool for making designs (Logo). Also presents an activity on dummy sorting. (JN)