What is the function of the control unit when interacting with computer memory? MCQ with Answer and Explanation

What is the function of the control unit when interacting with computer memory?
A. It translates physical data sectors into optical laser frequencies.
B. It permanently erases malicious software definitions from the ROM.
C. It directs the flow of data and instructions between the CPU registers and memory.
D. It formats empty partitions into recognizable file structures like NTFS.
Answer: Option C
Solution (By JKSSB Mock Tests)
The control unit within the CPU coordinates data routing and instruction fetching operations between internal storage areas, registers, and system memory.

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Practice More Memory and Storage Devices Questions

Question #1
Which of the following is a type of flash memory that is typically used in BIOS chips?
A. NOR
B. SRAM
C. NAND
D. DRAM

Correct Answer: Option A


Explanation:
NOR flash is commonly used in BIOS chips due to its random-access capabilities and fast read speeds, allowing code execution directly from the chip.

This question belongs to: Computer Memory and Storage Devices
Question #2
What is the typical capacity of a DVD disc used for movies?
A. 4.7 GB (single layer)
B. 25 GB
C. Both A and B
D. 8.5 GB (dual layer)

Correct Answer: Option C


Explanation:
Commercial DVDs can be single-layer (4.7 GB) or dual-layer (8.5 GB) for longer movies. Both are used.

This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a characteristic of a hard disk's interface?
A. It determines the rotational speed
B. It determines the disk's capacity
C. It determines the maximum data transfer rate
D. It determines the platter size

Correct Answer: Option C


Explanation:
The interface (SATA, SAS, etc.) defines the maximum data transfer rate between the disk and the system.

This question belongs to: Computer Memory and Storage Devices