Optical floppy disc data storage and retrieval techniques

DETAILED DESCRIPTION It is an object of the present invention to store and retrieve information of the type set forth in the Gokey et al applications on a microdisc such that skew and tracking indicia are obviated.
Another object of the invention is to provide an economical data storage and retrieval system which may readily be constructed of presently available components and which is, in both construction and operation, cost effective and highly versatile.
Another object of the invention is to provide an information storage and retrieval system in which both digital information and graphic information may be stored on and retrieved from the same disc.
As used herein, the term disc refers to a storage medium which may be microfilm, thermoplastic (diazo), paper or the like, and optical scanning may therefore include light reflection, light refraction or light transmission.
However, for the sake of simplicity, only microfiche storage and light transmission reading are discussed herein.