optical memory

optical memory

[′äp·tə·kəl ′mem·rē]
(computer science)
A computer memory that uses optical techniques which generally involve an addressable laser beam, a storage medium which responds to the beam for writing and sometimes for erasing, and a detector which reacts to the altered character of the medium when it uses the beam to read out stored data.
Mentioned in ?
References in periodicals archive ?
This suite includes Linear Bar Codes, 2-dimensional Symbols, Optical Memory Cards, Satellite-Tracking Systems, Contact Memory Buttons, and RFID tags.
A major limiting factor for most optical memory systems is that achieving sufficient storage capacity requires moving the media relative to the optical head (such as in disks and tape).
government's investment in secure optical memory card biometric verification systems.
Aurora Biosciences Corporation (San Diego, CA; 858-404-6767) announced the issuance of United States Patent 6,046,925 entitled "Photochromic Fluorescent Proteins and Optical Memory Storage Devices Based on Fluorescent Proteins.
A compact optical memory chip would make telecommunications networks more efficient and optical computers more feasible, information technology experts say.
Optical memory cards using compression techniques can now create a picture and sound of a human heartbeat for a doctor to see and hear.
government procurement subcontract authorizing up to $81 million for optical memory cards used for U.
Drexler Technology Corporation (Nasdaq:DRXR) has received a $100,000 order for 10,000 LaserCard optical memory cards plus read/write devices and fingerprint biometric sensors to be used by an eastern Mediterranean government for import duty collection and the approval, certification, and licensing of the importation of chemical products used by consumers.
A flat, optical memory chip the size of a postage stamp could theoretically store 350 million bits of information, or more than seven years' worth of SCIENCE NEWS.