Which of the following statements about Read Only Memory (ROM) are correct? Choose the correct answer from the options given below.
1.The contents of the memory remain intact even when the power to the ROM is turned off.
2.ROM is often used to store the start-up instructions when the computer is first switched on.
3.As the ROM becomes full, the processor has to continually access the hard disk.
4.ROM is a volatile memory.
A1, 2 only ✓ Correct
B2, 3 only
C1, 3 only
D1, 2, 3, 4
Correct answer: (A) 1, 2 only
Explanation
ROM keeps its contents even when the power is switched off and commonly stores the start-up instructions, making Statement 1 and Statement 2 the true ones.
Statement 1 is right because ROM is non-volatile and retains data without power.
Statement 2 is right because the boot instructions run from ROM when the machine is switched on.
Statement 3 is wrong because ROM does not fill up and force constant hard-disk access.
Statement 4 is wrong because ROM is non-volatile, not volatile.
RAM, by contrast, is the volatile memory that loses its data when powered off.
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