Multiple choice

Which of the following is the disadvantage of dynamic RAM over static RAM?

  1. Higher power consumption

  2. Variable speeds

  3. Higher bit density

  4. Need to refresh the capacitor charge every once in 2 milliseconds
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dynamic RAM uses capacitors to store charge representing data, which leaks over time and must be refreshed regularly (typically every 2ms). Static RAM uses flip-flops that don't need refreshing, making DRAM's refresh requirement its key disadvantage.

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