Paper 1 · ICT
UGC NET December 2023 (12.12.2023) Shift-II
Which of the following hardware components will lose data when the power to a computer is switched off? Choose the correct answer from the options given below.
- 1. CPU Registers
- 2. Cache Memory
- 3. Main Memory
A3 only
B1 and 3 only
C1 and 2 only
D1, 2 and 3 ✓ Correct
Correct answer: (D) 1, 2 and 3 — CPU registers, cache memory and main memory all lose data on power off, so the answer is 1, 2 and 3.
Explanation
★CPU registers, cache memory and main memory all lose data on power off, so the answer is 1, 2 and 3.
★These three are all forms of volatile primary storage.
★Volatile memory keeps its contents only while the computer has power.
★CPU registers hold data the processor is working on right now.
★Cache memory and main memory hold data and programs in current use.
★When the power goes off, all three lose their stored data.
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