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PC System Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the main function of the controller in the CPU?

a)

Perform mathematical operations

b)

Execute program instructions

c)

Manage power supply

d)

Temporarily store data

2.

What does ALU stand for?

a)

Analog Logic Unit

b)

Arithmetic Logic Unit

c)

Arithmetic Load Unit

d)

Advanced Logic Unit

3.

What type of memory is RAM?

a)

Permanently

b)

Non-volatile

c)

Volatile

d)

Static

4.

What is the purpose of the program counter (PC)?

a)

To hold the current instruction

b)

To manage power consumption

c)

To track the next instruction

d)

To store data permanently

5.

What does BIOS use ROM for?

a)

To perform complex calculations

b)

To control communication with peripheral devices

c)

To improve graphics performance

d)

To store user data

6.

What is the mainboard in a PC called?

a)

Power supply

b)

Mainboard

c)

RAM

d)

Processor

7.

What is the function of a bus in a computer system?

a)

Manage power supply

b)

Allow communication between devices

c)

Connect peripheral devices

d)

Store data

8.

What does the width of a bus determine?

a)

Type of CPU

b)

Size of RAM

c)

Amount of data that can be transmitted

d)

Speed of the processor

9.

What is the purpose of the expansion slots on the motherboard?

a)

To install additional hardware components

b)

To enhance cooling

c)

To store more data

d)

To enhance power supply

10.

What is the speed of the CPU measured in?

a)

Kilohertz

b)

Gigahertz

c)

Terahertz

d)

Megahertz

11.

What happens to the information in RAM when the computer is turned off?

a)

It is stored permanently

b)

It is saved on the hard drive

c)

It is transferred to ROM

d)

It is lost

12.

Which component performs arithmetic operations in the CPU?

a)

Control unit

b)

Register

c)

Arithmetic and logic unit

d)

Mainboard

13.

What is the role of the system clock in a computer?

a)

To execute commands

b)

To store data

c)

To synchronize data flow

d)

To manage power supply

14.

What type of memory is ROM?

a)

Can be changed

b)

Cannot be changed

c)

Temporary

d)

Dynamic

15.

What is the main purpose of the CPU cache?

a)

To store data permanently

b)

To speed up data access

c)

To manage power supply

d)

To execute commands

16.

Which component is responsible for converting digital signals into analog signals?

a)

Modem

b)

Router

c)

Network Interface Card

d)

Switch

17.

What is the role of the data bus in a computer system?

a)

To transmit data between components

b)

To manage power supply

c)

To temporarily store data

d)

To execute program instructions

18.

What is the purpose of the instruction register (IR) in the CPU?

a)

To hold the current instruction being executed

b)

To manage memory allocation

c)

To store data permanently

d)

To control input/output operations

19.

What is the function of the address bus in a computer system?

a)

To transmit data between components

b)

To manage power supply

c)

To carry addresses from the CPU to other components

d)

To temporarily store data

20.

What is the main role of the graphics processing unit (GPU) in a computer?

a)

Manage system memory

b)

Perform complex calculations

c)

Display images and videos

d)

Control peripheral devices