Which of the following memory types is non-volatile and used for long-term storage?
A. RAM
B. Registers
C. Cache
D. ROM
Answer: Option D
Solution (By JKSSB Mock Tests)
ROM is non-volatile and retains data without power. However, for long-term storage, hard disks and SSDs are more common; ROM is typically used for firmware. Among the options, ROM is non-volatile.
Explanation:
Random access memory (RAM) allows any memory location to be accessed directly in roughly the same amount of time, regardless of its physical location.
Explanation:
SSDs are purely electronic devices that use flash memory chips, meaning they lack the spinning platters, spindle motors, and moving read/write arms found in mechanical HDDs.
Explanation:
DDR4 offers higher data rates (up to 3200 MT/s and beyond) and lower operating voltage (1.2V vs 1.5V for DDR3), leading to improved performance and efficiency.
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