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…

Focusing primarily on hard disks, this report describes the choices currently available; explains the inner workings of hard-disk technology; lists 70 leading hard-disk products with their costs and capabilities; describes a new type of high-capacity drive; and compares speed, cost, and reliability of a number of widely used hard-disk backup…

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.…