In computer data organization, what does a single 'Word' represent? MCQ with Answer and Explanation

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In computer data organization, what does a single 'Word' represent?

A. A text element containing no numerical integers.

B. The standard space needed to save a string character.

C. The natural unit of data used by a particular CPU design (e.g., 32-bit or 64-bit).

D. A fixed group of 8 bits.

Answer: Option C

Solution (By JKSSB Mock Tests)

A computer word is the standard size of data that a processor can handle and execute in a single operation, typically 32 or 64 bits modernly.

This question belongs to: Computer Memory and Storage Devices

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Question #1

Which unit is used to measure the rotational speed of a hard disk?

A. Hz

B. RPM (Revolutions Per Minute)

C. MB/s

D. MS

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Correct Answer: Option B

Explanation:
Hard disk rotational speed is measured in RPM, e.g., 5400 RPM, 7200 RPM, or higher. Higher RPM generally results in faster read/write performance.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is the fastest type of memory?

A. SRAM

B. Flash

C. DRAM

D. ROM

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Correct Answer: Option A

Explanation:
SRAM is the fastest among the listed options because it does not need refresh cycles and uses flip-flops, allowing near-instant access times, though it is more expensive.

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Question #3

What is the main purpose of virtual memory?

A. To speed up memory access

B. To reduce the cost of memory

C. To allow programs to use more memory than physically available

D. To increase the physical RAM capacity

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Correct Answer: Option C

Explanation:
Virtual memory enables a computer to use more memory than is physically installed by swapping data between RAM and secondary storage (like a hard disk), allowing large programs to run.

This question belongs to: Computer Memory and Storage Devices

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