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What is Cache Memory

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What is Cache Memory and Function So in this Artical we'll understand what is cache memory in computers and laptops. So in this Artical, we'll see what is the importance of this cache memory?  What is the typical size of this cache memory ? what are the different levels of cache memory that we fight inside the computers? So before we understand this case, from where it let us see different kinds of memory that we see inside our computers . So the first kind of memory that we find inside our computers is the non-volatile kind of memory like a hard Disk drive . So this hard disk low contains a mechanically rotating fast disks, which is also known as platters. And if you see any, commercially-available hard disk drive, the typical rotation speed of hard disk is either 5,400 or 7,200 RPM. So as hard disk drive contains a mechanical rotating part. So in terms of the speed, they are quite slow. So the typical reader writes speed that you get with this hard disk drive is in the rang...