Describes the operation and numerous capabilities of a British computerized data retrieval system named Prestel. It provides access, through the regular telephone network and a TV screen, to computer-based information supplied by many companies, agencies and commercial outlets. (GA)

Descriptions are given for the 164 computerized files that comprise the Texas Natural Resources Information System (TNRIS). The system provides natural resources information to federal, state, regional, and local and private entities. File descriptions are organized under the following data and information content areas: (1) base data, (2)…

A methodology for categorically describing computer-based information systems was developed and applied to six university-based, NSF-supported systems. The systems under study all operate as retail information cneters primarily serving campus communities by accessing large commercially-available data bases using 3rd generation computer…

A number of large information systems operating in countries other than Canada were investigated. Some of these systems or combinations of them can be used as models for pilot applications in Canada. Some research and considerable development are required, however, to enable them to meet specific Canadian requirements. To create regional and…

This document reports the results of a study that surveyed and analyzed educational information at certain educational agencies to determine whether or not certain information items are presently maintained at various State departments of education and at certain large school districts. A summary of information maintained by each State department…

WISE is an on-line interactive information retrieval system designed particularly for bibliographic data bases, but it is potentially useful for any keyword-oriented data base. The WISE user searches a data base by entering and combining keywords that are appropriate to the data base and the subject area of interest. The user can also enter…

Batch mode processing is compared, using cost-effectiveness, with on-line processing for computer-aided searching of chemical abstracts. Consideration for time, need, coverage, and adaptability are found to be the criteria by which a searcher selects a method, and sometimes both methods are used. There is a tradeoff between batch mode's slower…

SCORPIO (Subject Content-Oriented Retriever for Processing Information On-line), a set of computer programs developed by the Library of Congress for use by the Library Library's staff, is described. Intended as a users guide for those not trained in data processing, this document presents the system's general characteristics together with a…