What is the function of the memory controller? MCQ with Answer and Explanation

What is the function of the memory controller?
A. To store the BIOS
B. To manage data transfer between CPU and RAM
C. To control the hard disk
D. To handle network traffic
Answer: Option B
Solution (By JKSSB Mock Tests)
The memory controller is a chip that manages the flow of data between the CPU and the system memory (RAM). It is often integrated into the CPU or on the motherboard.

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Practice More Memory and Storage Devices Questions

Question #1
What is the standard maximum capacity of a classic 3.5-inch High-Density Floppy Disk?
A. 1.44 MB
B. 720 KB
C. 2.88 MB
D. 1.2 MB

Correct Answer: Option A


Explanation:
The standard high-density 3.5-inch floppy disk widely used in personal computers has a formatted storage capacity of 1.44 Megabytes.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which memory unit is equivalent to 1024 gigabytes?
A. 1 petabyte
B. 1 kibibyte
C. 1 exabyte
D. 1 terabyte

Correct Answer: Option D


Explanation:
In binary, 1 terabyte (TB) = 1024 gigabytes (GB). However, in decimal context, 1 TB = 1000 GB. For exam purposes, 1024 GB is often considered 1 TB (though it's actually 1 TiB).

This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following is a type of memory that has the fastest access time?
A. RAM
B. Cache memory
C. Registers
D. Hard disk

Correct Answer: Option C


Explanation:
Registers have the fastest access time because they are inside the CPU, typically accessed in a single clock cycle.

This question belongs to: Computer Memory and Storage Devices