Which of the following is a characteristic of ROM?
A. Non-volatile and read-only
B. Can be written to easily
C. Used as main memory
D. Volatile
Answer: Option A
Solution (By JKSSB Mock Tests)
ROM is non-volatile memory that retains data without power and is typically read-only, though some types (like EEPROM) can be rewritten electrically but slowly.
Explanation:
Magnetic tapes require data to be read or written sequentially from beginning to end, unlike random-access devices like HDDs, SSDs, and CDs.
Explanation:
Registers are internal to the CPU and are directly connected to the execution units, providing the fastest access. Cache is on-chip but may have a bus; RAM and HDD are external.
Explanation:
Magnetic tape is a sequential access medium, meaning data must be read in order. It is used for backup and archival due to high capacity and low cost.
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