cache(redirected from dirty bit)
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a. An amount of goods or valuables, especially when kept in a concealed or hard-to-reach place: maintained a cache of food in case of emergencies.
b. The concealed or hard-to-reach place used for storing a cache.
2. A fast storage buffer in the central processing unit of a computer. Also called cache memory.
tr.v. cached, cach·ing, cach·es
To hide or store in a cache. See Synonyms at hide1.
[French, from Middle French, from cacher, to hide, from Old French, from Vulgar Latin *coācticāre, to store, pack together, frequentative of Latin coāctāre, to constrain, frequentative of cōgere, coāct-, to force; see cogent.]
1. a hidden store of provisions, weapons, treasure, etc
2. the place where such a store is hidden
3. (Computer Science) computing a small high-speed memory that improves computer performance
4. (tr) to store in a cache
5. (Computer Science) (tr) to store in a cache
[C19: from French, from cacher to hide]
n., v. cached, cach•ing. n.
1. a hiding place for ammunition, food, treasures, etc.
2. anything hidden in a cache.
3. a piece of computer hardware or a section of RAM dedicated to selectively storing and speeding access to frequently used program commands or data.v.t.
4. to hide in a cache.
[1585–95; < French, n. derivative of cacher to hide < Vulgar Latin *coācticāre to stow away, orig. to pack together]
In evasion and recovery operations, source of subsistence and supplies, typically containing items such as food, water, medical items, and/or communications equipment, packaged to prevent damage from exposure and hidden in isolated locations by such methods as burial, concealment, and/or submersion, to support evaders in current or future operations. See also concealment; evader; evasion; evasion and recovery; recovery; recovery operations.
Cachea hiding place, hence, the items hidden; the stores of provisions hidden by travellers or explorers on their journeys.
Examples: cache of green boughs, 1866; of jewels; of meat, 1865; of a barrel of pork, 1842; of provisions; of silver, 1860; of treasure.
Past participle: cached
A temporary storage area in a computer’s memory.
|Noun||1.||cache - a hidden storage space (for money or provisions or weapons)|
storage space - the area in any structure that provides space for storage
|2.||cache - a secret store of valuables or money|
|3.||cache - (computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristics|
buffer storage, buffer store, buffer - (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system
disk cache - 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
|Verb||1.||cache - save up as for future use|