Given below are two statements. In the light of the above statements, choose the most appropriate answer from the options given below.
Statement I:Dynamic RAM (DRAM) is the most common type of RAM used in computers, but where absolute speed is essential, Static RAM (SRAM) is the preferred technology.
Statement II:The processor's memory cache is the high speed portion of the memory and SRAM is the effective technology for the same.
ABoth Statement I and Statement II are correct ✓ Correct
BBoth Statement I and Statement II are incorrect
CStatement I is correct but Statement II is incorrect
DStatement I is incorrect but Statement II is correct
Correct answer: (A) Both Statement I and Statement II are correct
Explanation
Statement 1 is correct because dynamic RAM is the common main memory while static RAM is preferred where top speed matters.
Statement 2 is correct because the processor's cache is high speed memory and static RAM suits it well.
Static RAM holds each bit in a stable circuit, so it needs no constant refreshing.
Dynamic RAM stores bits in capacitors that must be refreshed but is cheaper and denser.
Cache sits close to the processor to feed it data quickly.
The speed of static RAM makes it costlier per bit than dynamic RAM.
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