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Cache term explained

Cache — a portion of computer memory allocated for quick access to frequently requested information from the core, but slower memory.

Appointment

The Cache transfers data between a high frequency processor and slower RAM. It repack of information from a RAM to small blocks processed by the processor. This helps reduce the waiting time of CPU and increases overall system performance.

Device

The cache is placed as part of the processor or as a separate chip depending on the level of performance. The fastest cache memory of the first level and less operational second level cache are performed as part of the processor cache of the third level as a separate chip on the motherboard. Physically the cache is implemented on the trigger, consisting of transistors, what is the speed and low volume. Latest ranges from a few KB to several MB. The smallest cache of the first level, the largest third level for more than 24 MB. Some machines use a cache of the fourth level, but its use is limited.

Caching

The principle of operation of the cache memory based approximation of relevant information to the consumer, has a wide application. Caching is used in operating systems, servers, browsers, special programs, external storage devices. In any case, demand information is stored in a specially provided software or hardware device ready for rapid use. With the active use of PC and working Internet cache is recommended to be cleaned periodically, since the information takes place on the hard disk.

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