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                                   Cache memory Cache memory also called a CPU memory .Cache memory is special and very high speed memory . It is used to speedup and synchronizing with high speed CP U .Cache memory is used to reduce the average time to access data from main memory .The  cache memory is located very close to the CPU. So instructions and data can be read from it (and written to it) much more quickly than is the case with normal RAM. The cache memory is a smaller and faster memory which store copies of the data from frequently used main memory location .There are three different categories of cache memory they are L1, L2,L3 .

  Cache is a small amount of memory which is a part of the CPU - closer to the CPU than RAM . It is used to temporarily hold instructions and data that the CPU is likely to reuse. The cache memory is located very close to the CPU, either on the CPU chip itself or on the motherboard in the immediate vicinity of the CPU and connected by a dedicated data bus. So instructions and data can be read from it (and written to it) much more quickly than is the case with normal RAM.These caches of data are essentially just junk files, and they can be safely deleted to free up storage space.

Cache memory is a small-sized type of volatile computer memory that provides high-speed data access to a processor and stores frequently used computer programs, applications and data. A temporary storage of memory, cache makes data retrieving easier and more efficient. It is the fastest memory in a computer, and is typically integrated onto the motherboard and directly embedded in the processor or main random access memory (RAM).