Reviews requirements for a data archive system and describes storage media alternatives that are currently available. Topics discussed include data storage; data distribution; hierarchical storage architecture, including inline storage, online storage, nearline storage, and offline storage; magnetic disks; optical disks; conventional magnetic…

Describes EDP (electronic data processing) insurance, which provides coverage for such things as the loss of computer programs and accumulated transaction data, and the consequences of an interruption in processing. Discusses what is and is not covered by EDP insurance, how to plan for EDP insurance, the amount of coverage to get, and how to avoid…

This document explains recent developments in computer science and information systems of interest to the educational manager. A brief history of computers is included, together with an examination of modern computers' capabilities. Various features of card, tape, and disk information storage systems are presented. The importance of time-sharing…

Discusses the new languages and software packages that make up data base management systems, outlines the characteristics of the systems, and examines the benefits claimed for them. (IRT)

Reports a survey conducted by the Bibliographical Center for Research to determine the extent of variations for entering local data on the part of BCR OCLC libraries. The results are presented along with a discussion of alternative practices and their impact on the processing of OCLC tapes. References are included. (Author/RAA)

The Inverted File Information Retrieval System (INFIRS), is a document search system which offers a comprehensive range of search facilities. It has been developed at the United Kingdom Chemical Information Service (UKCIS) as a general purpose retrieval tool, suitable for handling a wide variety of data-bases (both free-text and controlled…

Both accidental and intentional events may compromise the security of an electronic data processing system. Ways of assessing security needs are surveyed, and measures that can be taken to prevent, detect, and recover from security breaches are described. (Author/LBH)

Introduces some algorithmic methods, for which no pre-editing is necessary, for automatically "lemmatising" raw text (changing raw text to an equivalent version in which all inflected words are artificially transformed to their dictionary look-up form). The results of a study of these methods, which used a German Text, are also given. (KM)

Privacy is defined and its various social implications discussed in the first part of this paper. The effect of a National Data Center (NDC) and computerized dossiers about people and their past is also considered. It is determined that a computerized information system would present at least four distinct problems to individual identity or…

The purpose of this article is to describe a system for protecting the anonymity of subjects in longitudinal research and for maintaining the security of data files. The basic system comes from the American Council on Education Cooperative Institutional Research Program. Data is collected from questionnaires, and converted to magnetic tape.…

A pressing and recurrent problem in developing curriculum material is the unnecessary duplication of work done by others; to avoid this, the nine-campus University of California has established a computer data base containing information on all courses and programs being currently offered by the school. (JD)

Twenty-nine steps necessary for data file preparation for secondary analysis are discussed. Data base characteristics and planned use vary the complexity of the preparation. Required techniques (file verification, sample verification, file merger, data aggregation, file modification, and variable controls) and seven associated pitfalls are defined…

Response time in large, inverted file document retrieval systems is determined by time required to access files of document identifiers on disk and process a Boolean search request. A specialized computer system has been devised that can perform a complicated sample search involving 70 terms and over 60,000 document references 12 to 60 times…

A bulk data input processor which is available for the Rapidly Extensible Language (REL) English versions is described. In REL English versions, statements that declare names of data items and their interrelationships normally are lines from a terminal or cards in a batch input stream. These statements provide a convenient means of declaring some…

Reviews definitions and the scope, history, technological capabilities, and other significant issues of electronic publishing. Advantages and disadvantages of electronic publishing are compared to those of traditional publishing, and possible future impacts of electronic publishing on books and libraries are considered. (CDD)