computer optical disc
11optical disc — high capacity storage medium for storing computer data which is read and written by lasers …
12High definition optical disc format war — The high definition optical disc format war was a format war between the Blu ray Disc and HD DVD optical disc standards for storing high definition video and audio. These standards emerged between 2000 and 2002 and attracted both the mutual and… …
13Optical storage — is a term from engineering referring to the storage of data on an optically readable medium. Data is recorded by making marks in a pattern that can be read back with the aid of light, usually a beam of laser light precisely focused on a spinning… …
14Optical engineering — is the field of study that focuses on applications of optics. Optical engineers design components of optical instruments such as lenses, microscopes, telescopes, and other equipment that utilizes the properties of light. Other devices include… …
15Computer storage density — is a measure of the quantity of information bits that can be stored on a given length of track, area of surface, or in a given volume of a computer storage medium. Generally, higher density is more desirable, for it allows greater volumes of data …
16optical drive — UK US noun [C] (also optical disc drive) ► IT part of a computer, CD player, or other piece of equipment that can read optical discs using a laser (= a narrow beam of light): »The laptop costs $1598 with an external optical drive …
17Computer data storage — 1 GB of SDRAM mounted in a personal computer. An example of primary storage …
18computer memory — memory (def. 11). * * * Introduction device that is used to store data or programs (sequences of instructions) on a temporary or permanent basis for use in an electronic digital computer. Computers represent information in binary code,… …
19Optical media preservation — The preservation of optical media is essential because it is a resource in libraries, and stores audio, video, and computer data to be accessed by patrons. While optical discs are generally more reliable and durable than older media types,… …
20Optical recording — The history of optical recording can be divided into a few number of distinct major contributions. The pioneers of optical recording worked mostly independently, and their solutions to the many technical challenges have very distinctive features …
