What is the purpose of a memory bus width? MCQ with Answer and Explanation

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What is the purpose of a memory bus width?

A. It determines the memory capacity

B. It determines the clock speed

C. It determines the power consumption

D. It determines the number of bits transferred simultaneously

Answer: Option D

Solution (By JKSSB Mock Tests)

The bus width (e.g., 64-bit) is the number of bits that can be transferred at once between CPU and memory, affecting bandwidth.

This question belongs to: Computer Memory and Storage Devices

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Practice More Memory and Storage Devices Questions

Question #1

Which of the following is a type of memory that is used for storing data in a gaming console?

A. GDDR

B. All of the above

C. DDR4

D. SDRAM

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Correct Answer: Option A

Explanation:
Gaming consoles often use GDDR (Graphics DDR) for high bandwidth memory, though they may also use other types. GDDR is specific to graphics.

This question belongs to: Computer Memory and Storage Devices

Question #2

Which of the following is a common interface for optical drives?

A. SCSI

B. IDE

C. SATA

D. All of the above

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Correct Answer: Option D

Explanation:
Optical drives have been available with SATA, IDE, and SCSI interfaces, though SATA is the most common in modern systems.

This question belongs to: Computer Memory and Storage Devices

Question #3

What is the typical access time of a hard disk drive compared to RAM?

A. HDD access time is faster

B. They are similar

C. RAM is slower

D. HDD access time is much slower (milliseconds vs nanoseconds)

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Correct Answer: Option D

Explanation:
HDD access times are around 5-10 ms (milliseconds), while RAM access times are around 50-100 ns (nanoseconds), making RAM thousands of times faster.

This question belongs to: Computer Memory and Storage Devices

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