![]() The hard disk is the non-volatile component which means the data is stored permanently in hard disk and it does not wipe out when the system is shut down. The hard disk can be preinstalled in CPU or can be used as an external device. The hard disk is another type of computer hardware that is used to store the data in it. And the DRAM is mostly used in modern computers. The use of SRAM is in a cache memory of CPU. There are two types of RAM SRAM (Static Random Access Memory) and DRAM (Dynamic random access memory). The fetch process of data is very fast in Ram compare to hard disk. The data can be easily stored in RAM and can be easily fetched from RAM. The processing speed of RAM is much faster than a hard disk but Ram is a volatile device which means when a computer system is shut down all the information stored is wiped out from RAM whereas hard disk is non-volatile which means it stores the data permanently in it. RAM (Random Access Memory) is a type of computer hardware that is used to store the information and then process that information.
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