Outlines basic videodisc and optical disk technology describing both optical and capacitance videodisc technology. Optical disk technology is defined as a mass digital image and data storage device and briefly compared with other information storage media including magnetic tape and microforms. The future of videodisc and optical disk is…

Describes three commercial, numeric databases that are available in microcomputer diskette format: Micro/Scan Disclosure; Wharton Econometric Forecasting Associates World Economic Service; and Trinet's Survey of Commercial Buying Power. Advantages and disadvantages of the diskette format, search strategies, and a selected list of eight suppliers…

Describes a survey of 39 database publishers concerning their policies for downloading, i.e., capture of information into machine-readable format from proprietary databases. Discussion covers fair use principle, long-term storage and reuse, policy enforcement, and per record payment principle. Database publishers surveyed profile of survey…

This article presents a brief history of the videodisc and describes three major current manifestations of this storage medium--read-only, write-once, erasable. The current status of write-once technology, major corporations involved in the field, potential uses for various types of storage media, and software and market trends are highlighted.…

Intended to be a central source of information on where to acquire statistics on the social and economic characteristics of various racial groups, this report includes references on printed reports, computer tapes, and special calculations. The racial categories of white, negro or black, Indian, Japanese, Chinese, Filipino, Hawaiian, Korean,…