Examines design functions of present file organizations in the context of available data storage devices and identifies current developmental trends. (Author/RAA)

Discusses software developed to organize and retrieve electronically stored data, examining structure of the databases in which information is stored and the physical structure of the storage medium. Hierarchical and relational databases, unordered files, B-trees, and storage/software for specific purposes (such as weather, stock market, and…

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…

Extensions are required to the currently operational INGRES data base system for it to manage a data base distributed over multiple machines in a computer network running the UNIX operating system. Three possible user views include: (1) each relation in a unique machine, (2) a user interaction with the data base which can only span relations at a…

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…

A model for developing a data control system in an integrated management information system. (RA)

Surveys the technology of database software and hardware, describing some of the principal issues related to the user's view of data, sharing, concurrent access, security, and integrity. (JN)

The papers and discussions of the 1975 Pacific Region meeting of the Association for Computing Machinery are presented. Topics included (1) the current and emerging state of the art in data management software and hardware, (2) relational systems with particular attention to new developments in systems for relational data bases, (3) advances in…

Although the indispensibility of access control mechanisms in data secure systems has been recognized, there is a need for more subtle protection and refined control mechanisms. This report describes context protection mechanisms which enable the same data unit to be protected differently in different contexts, the differences being determined by…

Examines the expansion of data services in Western Europe after the computer revolution. Stresses that distinctive career lines and eventually a distinctive profession must be created to cope with the proliferation of data and the increase in demand for access to this data. (Author/DB)

A look at how the Atlanta Public Schools has utilized computers for collecting data to support a large community of computer users and a variety of computer applications. (Author/HB)

The computational complexity of a formal process for the construction of term classes for information retrieval is examined. While the process is proven to be difficult computationally, heuristic methods are applied. Experimental results are obtained to illustrate the maximum possible improvement in system performance of retrieval using the formal…

Describes applications of new technology to information handling on the basis of two trends--the miniaturization of electronic circuits and the shift from analog to digital modes of communication. Information technologies discussed are microcomputers, word processors, telecommunications, storage technologies, databases, videotex, and teletext.…

More than 100 data banks are listed with notes indicating the sponsoring agency, the type of material stored, where available, and the number of references stored annually. Characteristics of data banks, types of storage, descriptions of devices, and storage organization are briefly discussed in the introduction. Indexes to the data banks listed…

Discusses trends in computer technology and their use for library catalogs, noting the concept of bandwidth (describes quantity of information transmitted per given unit of time); computer hardware differences (micros, minis, maxis); distributed processing systems and databases; optical disk storage; networks; transmission media; and terminals.…