physical recording density

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• physical science, principles of — Introduction       the procedures and concepts employed by those who study the inorganic world.        physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… …   Universalium

• Comparison of analog and digital recording — This article compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded using either digital or analog techniques. An analog… …   Wikipedia

• Memory 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 …   Wikipedia

• Computer 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 …   Wikipedia

• Ultra Density Optical — (UDO) is an optical disc format designed for high density storage of high definition video and data. Overview An Ultra Density Optical disc or UDO is a 133.35 mm (5.25 ) ISO cartridge optical disc which can store up to 60 GB of… …   Wikipedia

• Optical 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 …   Wikipedia

• Group code recording — In computer science, group code recording (GCR) refers to several distinct but related encoding methods for magnetic media. The first, used in 6250 cpi magnetic tape, is an error correcting code combined with a run length limited encoding scheme …   Wikipedia

• Optical disc recording technologies — Optical discs Optical disc Optical disc drive Optical disc authoring Authoring software Recording technologies Recording modes Packet writing Optical media types …   Wikipedia

• Zone bit recording — (ZBR) is used by disk drives to store more sectors per track on outer tracks than on inner tracks. It is also called Zone Constant Angular Velocity (Zone CAV or Z CAV or ZCAV).On a disk consisting of concentric tracks, the physical track length… …   Wikipedia

• физическая плотность записи — Число переходов потока, записанных на дорожке носителя данных на единицу длины или угла. Примечание Обычно используют единицы переходов потока на миллиметр (пп/мм) для длины и переходов потока на радиан (пп/рад) для углов. [ГОСТ 25868 91]… …   Справочник технического переводчика

• Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …   Wikipedia