Paper 1 · ICT
UGC NET December 2021 June 2022 (11.07.2022) Shift-I
Given below are two statements. In the light of the statements, choose the correct answer.
- Statement I: Most PCs use Dynamic RAM for CPU cache.
- Statement II: Static RAM is faster and more expensive than Dynamic RAM.
ABoth Statement I and Statement II are true
BBoth Statement I and Statement II are false
CStatement I is true but Statement II is false
DStatement I is false but Statement II is true ✓ Correct
Correct answer: (D) Statement I is false but Statement II is true — Statement I is false and Statement II is true, so the answer is that only Statement II is true.
Explanation
★Statement I is false and Statement II is true, so the answer is that only Statement II is true.
★CPU cache is built from Static RAM, not Dynamic RAM, because the cache needs very high speed.
★So the claim that most PCs use Dynamic RAM for cache is false.
★Static RAM is indeed faster than Dynamic RAM because it does not need constant refreshing.
★Static RAM is also more expensive, since each cell uses more transistors and takes more chip area.
★Dynamic RAM is cheaper and denser, which is why it is used for the large main memory.
★Matching each memory type to its speed, cost, and use is a core ICT hardware distinction.
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