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Q1: What is the primary function of a keyboard?

(a) To display information
(b) To print documents
(c) To store data permanently
(d) To enter alphabets and numbers into the computer
Ans: (d)
Solution: A keyboard is used to enter alphabets and numbers into the computer using small buttons called "keys."

Q2: Which part of the computer is also called its "brain"?
(a) Monitor
(b) Mouse
(c) CPU
(d) Keyboard
Ans: (c)
Solution: The CPU (Central Processing Unit) is the brain of the computer as it processes all tasks and connects different parts of the system.
Practice Questions: Parts of Computer | International Computer Science Olympiad Class 1
Q3: Which part of the computer looks like a TV screen?
(a) CPU
(b) Monitor
(c) Scanner
(d) UPS
Ans: (b)
Solution: A monitor looks like a TV screen and displays all the work done on the computer.

Q4: What is the function of a mouse?
(a) To select and point at items on the screen
(b) To type letters
(c) To scan documents
(d) To print documents
Ans: (a)
Solution: A mouse is a pointing device used to select and point at items on the computer screen.

Q5: What is the use of a printer?
(a) To display work on the screen
(b) To take work on paper
(c) To listen to music
(d) To store information
Ans: (b)
Solution: A printer helps print the same work shown on the monitor onto a paper.
Practice Questions: Parts of Computer | International Computer Science Olympiad Class 1
Q6: What does a scanner do?
(a) It prints documents
(b) It turns the computer on and off
(c) It plays music
(d) It scans documents and enters them into the computer
Ans: (d)
Solution: A scanner helps put documents and pictures into the computer by scanning them.
Practice Questions: Parts of Computer | International Computer Science Olympiad Class 1
Q7: Which device helps you listen to sounds from a computer?
(a) Keyboard
(b) CPU
(c) Speakers and headphones
(d) Mouse
Ans: (c)
Solution: Speakers and headphones allow users to listen to songs, voices, and other sounds from a computer.
Practice Questions: Parts of Computer | International Computer Science Olympiad Class 1
Q8: What is the function of the UPS?
(a) It stores information permanently
(b) It keeps the computer running when the electricity goes off
(c) It displays pictures
(d) It helps in playing games
Ans: (b)
Solution: A UPS (Uninterrupted Power Supply) keeps the computer ON for some time when the electricity goes OFF.

Q9: Which part of a computer helps in watching movies and cartoons?
(a) Mouse
(b) Scanner
(c) CPU
(d) Monitor
Ans: (d)
Solution: The monitor displays movies and cartoons, just like a TV screen.
Practice Questions: Parts of Computer | International Computer Science Olympiad Class 1
Q10: What does CPU stand for?
(a) Central Processing Unit
(b) Computer Power Unit
(c) Central Program Unit
(d) Computer Processing Unit
Ans: (a)
Solution: CPU stands for "Central Processing Unit," which is responsible for processing and storing data.

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FAQs on Practice Questions: Parts of Computer - International Computer Science Olympiad Class 1

1. What are the main parts of a computer?

Ans. The main parts of a computer include the Central Processing Unit (CPU), memory (RAM), storage devices (such as hard drives or SSDs), input devices (like a keyboard and mouse), output devices (like a monitor and printer), and the motherboard, which connects all these components.

2. What is the function of the CPU in a computer?

Ans. The CPU, or Central Processing Unit, is often referred to as the brain of the computer. It performs calculations, executes instructions, and processes data. It is responsible for carrying out all the tasks that the computer executes by interpreting and executing program instructions.

3. What is RAM and why is it important?

Ans. RAM, or Random Access Memory, is a type of computer memory that temporarily stores data and instructions that the CPU needs while performing tasks. It is crucial because it allows for quick access to data, enabling smoother performance and multitasking. The more RAM a computer has, the more applications it can run simultaneously without slowing down.

4. How does a hard drive differ from an SSD?

Ans. A hard drive (HDD) uses spinning disks to read and write data, while a solid-state drive (SSD) uses flash memory to store data. SSDs are generally faster, more reliable, and more energy-efficient than HDDs, but they tend to be more expensive per gigabyte of storage.

5. What role do input and output devices play in a computer?

Ans. Input devices, such as keyboards and mice, allow users to enter data and commands into the computer. Output devices, like monitors and printers, display or produce the results of the computer's processes. Together, they facilitate interaction between the user and the computer system.

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