Define cache

Question

Give a brief introduction of the term cache?

Answer 1

It turns out which caching is a significant computer-science procedure which emerges on each computer in a variety of types. There are memory caches, software and hardware disk caches, page caches and more. Virtual memory is still a form of caching.

Caching is a technology depends on the memory sub-system of computer. The major reason of a cache is to speed up of computer while keeping the price of the computer low. Caching permits to computer to do tasks more quickly. Cache technology is the employ of a quicker however smaller memory type to accelerate a slower however larger memory type. A cache has some maximum size which is much smaller than the larger storage region. It is probable to have many layers of cache.

A computer is a machine in that we evaluate time in very small increments. When the microprocessor accesses the main memory (or RAM), it does it in about 60 nanoseconds (or 60 billionths of second). That is attractive speedy, however it is much slower than the typical microprocessor. Microprocessors can have cycle times as short 2 nanoseconds, thus to a microprocessor 60 nanoseconds appears like an infinity.