disk cache

   Pronounced "[disk cash]." An area of computer memory where data is temporarily stored on its way to or from a disk. When an application asks for information from the hard disk, the cache program first checks to see if that data is already in the cache memory. If it is, the disk cache program loads the information from the cache memory rather than from the hard disk. If the information is not in memory, the cache program reads the data from the disk, copies it into the cache memory for future reference, and then passes the data to the requesting application. This process is shown in the accompanying illustration. A disk cache program can significantly speed most disk operations. Some network operating systems also cache other often accessed and important information, such as directories and the file allocation table (FAT).
   See also directory caching.
   

Dictionary of networking . 2014.

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  • Disk Cache —  der, (Festplatten Cache) spezieller Pufferspeicher (Cache) zur Verkürzung der Zugriffszeit auf Daten der Festplatte oder von anderen Speichermedien. Der Disk Cache wird vom Betriebssystem (genauer von einem Zusatzmodul wie SmartDrive oder… …   Universal-Lexikon

  • Disk cache — may refer to: Disk buffer, the small amount of buffer memory present on a hard drive. Page cache, the cache of disk pages kept by the operating systems, stored in unused main memory. General application level caching of data stored on the disk.… …   Wikipedia

  • disk cache — noun a cache that stores copies of frequently used disk sectors in random access memory (RAM) so they can be read without accessing the slower disk • Hypernyms: ↑cache, ↑memory cache • Part Holonyms: ↑computer, ↑computing machine, ↑computing… …   Useful english dictionary

  • disk cache — memory which stores information from the disk and allows fast activation of the disk …   English contemporary dictionary

  • disk cache —    A place in memory where frequently recalled data is stored; enables speedier retrievals …   IT glossary of terms, acronyms and abbreviations

  • Cache Controller — Cache Controller,   ein spezieller Controller zur Organisation eines Pufferspeichers (Cache). Da der Cache eine begrenzte Kapazität hat, muss es eine klare Strategie geben, welche Daten wie lange in ihm gespeichert werden dürfen; die Umsetzung… …   Universal-Lexikon

  • Caché de disco — Saltar a navegación, búsqueda La caché de disco (Disk cache o Cache buffer en inglés) es una porción de memoria RAM añadida a un disco con la utilidad de almacenar los datos recientemente leídos y por lo tanto agilizar la carga de los mismos en… …   Wikipedia Español

  • Disk Buffer —   [dt. »Platten Puffer«], Disk Cache …   Universal-Lexikon

  • Disk-Puffer — Disk Puffer,   Disk Cache …   Universal-Lexikon

  • Cache — This article is about the computer science optimization concept. For other uses, see Cache (disambiguation). In computer engineering, a cache (  /ˈk …   Wikipedia

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