What is the primary function of the Arithmetic and Logic Unit (ALU) in the CPU?
Quiz on CPU and Output Devices

Quiz
•
Computers
•
7th Grade
•
Hard

Samuel Wanjohi
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Store data
Perform arithmetic and logical operations
Control input devices
Display visual information
Answer explanation
The primary function of the Arithmetic and Logic Unit (ALU) in the CPU is to perform arithmetic and logical operations, making it essential for executing calculations and decision-making processes in computing.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component connects all computer parts and allows communication between them?
Control Unit
Monitor
Motherboard
ALU
Answer explanation
The motherboard is the main circuit board that connects all computer components, allowing them to communicate. It houses the CPU, memory, and other essential parts, making it crucial for the overall functionality of the computer.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of copy does a monitor produce?
Hard copy
Soft copy
Printed copy
Audio copy
Answer explanation
A monitor displays information on the screen, which is considered a soft copy. Unlike hard copies, soft copies are not printed and exist in digital form, making 'soft copy' the correct answer.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the registers in a CPU?
Store permanent data
Temporarily store instructions and data
Control the speed of the processor
Manage software installations
Answer explanation
Registers in a CPU are used to temporarily store instructions and data that the processor is currently working on, allowing for faster access and processing compared to accessing data from main memory.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which device generates an output by displaying information in the form of graphics, text, and videos?
Headphones
Monitor
Printer
Plotter
Answer explanation
A monitor is a device that displays information visually, including graphics, text, and videos. Unlike headphones, printers, and plotters, which serve different functions, the monitor is specifically designed for visual output.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which device produces printed documents such as reports and photos?
Actuator
Speaker
Printer
Headphones
Answer explanation
A printer is the device specifically designed to produce printed documents, including reports and photos, by transferring digital information onto paper. The other options, like actuators and speakers, serve different functions.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which device is used to listen to music, audiobooks, or audio files from a computer?
Projector
Monitor
Printer
Speakers
Answer explanation
Speakers are the devices specifically designed to output sound, allowing you to listen to music, audiobooks, or audio files from a computer. Other options like projectors, monitors, and printers do not serve this purpose.
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