This paper aims to introduce an activity for teachers to assist in meeting learning outcomes as defined in the earth and environmental science units of the Australian Curriculum. The focus of the classroom tasks is on a global ocean feature referred to as El Niño. This phenomenon is part of the El Niño Southern Oscillation, which is largely…

This paper presents a study on the effects of various data compression methods from the viewpoint of central computer to terminal communications on a large graphics oriented timesharing system, PLATO IV. The desired goal is to increase terminal display speed without significant increase in the transmission error rates. While the major emphasis in…

The currently operational version of the INGRES data base management system gives a relational view of data, supports two high level, non-procedural data sublanguages, and runs as a collection of user processes on top of a UNIX operating system. The authors stress the design decisions and tradeoffs in relation to (1) structuring the system into…

The recent developments in computer hardware and software are presented to inform architects of this design tool. Technical advancements in equipment include--(1) cathode ray tube displays, (2) light pens, (3) print-out and photo copying attachments, (4) controls for comparison and selection of images, (5) chording keyboards, (6) plotters, and (7)…

Describes the design and operation of four software packages, or macros, written in the programing language of Microsoft's EXCEL for use on the Macintosh computer for data manipulation and presentation used in educational research. Reordering tabulated data, reversing the scoring of tabulated data, and creating tables and graphs are explained.…

Automatic image pattern recognition techniques have been successfully applied to improving productivity and quality in both manufacturing and service applications. Automatic Image Pattern Recognition Algorithms are often developed and tested using unique data bases for each specific application. Quantitative comparison of different approaches and…

This project comprises the second year's work of a 3-year research plan to develop computer programs, necessary data, and procedures for using the computer in a special field of musicology known as thematic indexing, and to explore the use of these techniques in other areas of music. During the second year, the research centered on three areas:…

Outlines new CD-I (compact disc-interactive) standard jointly developed by Sony and Philips which specifies what can be present on the compact disc and how it is coded. Specification allows for mixing CD digital audio and CD-I tracks on CD-I disks, and for CD digital audio decoding on CD-I players. (MBR)

Current plotting techniques offer new ways for decisionmakers to look at data via graphs, pictures, maps, and 3-D models. (Author)

Discusses the use of color computer graphics in teaching computer programing in the data processing department at Florida A and M University. A description of the course of study for data processing majors at the University is included. (JJD)

Telewriting, televideo, and facsimile systems are new forms of teleconferencing which can transmit a variety of graphic and pictorial information on voice-grade telephone lines. All of the equipment employs solid-state circuitry to enhance performance and to exploit the limitations of a narrowband channel. Telewriters range from simple…

A discussion of the concept of using a specially-designed graphics system that is being developed about a mini-computer to appraise the capability of carrying out computer-aided instruction at a modest cost in remote locations where it may not be possible to provide a large-scale system with time-shared terminals. (Author)

Describes VisiCalc, a programmed package for use with the Apple II microcomputer and discusses the use of this program for two library tasks--statistical analysis and budgeting. System features are described in the context of these applications and six tables illustrating system output are appended. Additional resources are listed. (RAA)

The plotting of multivariate data using computer line-printers has become a popular means of quickly representing multidimensional data. While many plotting programs are available, there is a paucity of research regarding the validity and reliability of interpretations made by viewing such graphics. This study explores the validity of four…

Recognizing the need for the development of a computer based information system which would handle remote sensing as well as conventional mapping data, the Bureau of Indian Affairs and the Bureau of Land Management contracted with Boeing Computer Services for the design and construction of a prototype Natural Resource Information System. The…