Dynamic RAM (DRAM) is slower than Static RAM (SRAM) because _________

  1. DRAM uses flip-flops
  2. DRAM is costlier
  3. DRAM requires refreshing
  4. DRAM is cheaper

Answer (Detailed Solution Below)

Option 3 : DRAM requires refreshing
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DSSSB TGT Hindi Female 4th Sep 2021 Shift 2
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200 Questions 200 Marks 120 Mins

Detailed Solution

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SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied.

Inside a dynamic RAM chip, each memory cell holds one bit of information and is made up of two parts: a transistor and a capacitor.

As DRAM has a capacitor, it continuously leaks current. Therefore it requires frequent refresh which consumes power. Hence, DRAM is slower than SRAM.
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