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Q:

Which memory needs refresh?

A) DRAM B) SRAM
C) ROM D) All of the above

Answer:   A) DRAM



Explanation:

Memory refresh is the process of periodically reading information from an area of computer memory and immediately rewriting the read information to the same area without modification, for the purpose of preserving the information.

DRAM1532669979.png image

Memory refresh is a background maintenance process required during the operation of semiconductor dynamic random-access memory (DRAM), the most widely used type of computer memory.

Subject: Computer
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