Which of the following memories needs refresh?
A. SRAM
B. DRAM
C. ROM
D. All of the above
E. None of the above
Answer: Option B
Solution(By Examveda Team)
A DRAM cell is composed of an access transistor and a capacitor. Data is stored in the capacitor as electrical charge, but electrical charge leaks over time. Therefore, DRAM must be refreshed periodically to preserve the stored data.This Question Belongs to Computer Fundamentals >> Computer Fundamental Miscellaneous
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