Worksheet Solutions: Know your Computers | International Computer Science Olympiad Class 1 PDF Download

Multiple Choice Questions

​(Choose the correct answer)

Q1: Which one of these is a machine?

• Option A: Tree
• Option B: Fan
• Option C: Bird
• Option D: Flower

Ans: Option B
Sol: A fan is a machine because it helps cool us by moving air, whereas a tree, bird, and flower are not machines.

Q2: Which part of the computer helps us type letters and numbers?

• Option A: Monitor
• Option B: Keyboard
• Option C: Mouse
• Option D: CPU

Ans: Option B
Sol: The keyboard has keys that we press to type letters and numbers on the computer.

Q3: Which device looks like a TV screen?

• Option A: Mouse
• Option B: Keyboard
• Option C: Monitor
• Option D: Pen drive

Ans: Option C
Sol: A monitor is a screen that displays images and videos, just like a TV screen does.

Q4: What do we use a mouse for?

• Option A: Writing letters
• Option B: Pointing and clicking
• Option C: Saving songs
• Option D: Watching cartoons

Ans: Option B
Sol: A mouse is used to move the pointer on the computer screen and click on things.

Q5: Which device stores songs, games, and videos?

• Option A: Keyboard
• Option B: Monitor
• Option C: Mouse
• Option D: Pen drive

Ans: Option D
Sol: A pen drive is used to store files like songs, games, and videos. It is a small device that can be plugged into a computer.

Fill in the Blanks

(Use the word bank to fill in the blanks.)
Word Bank: Monitor, Keyboard, CPU, Mouse,Pen drive

Q1: The brain of the computer is called the __________.
Ans: CPU
The CPU (Central Processing Unit) is like the brain of the computer because it processes all the information and makes the computer work.
Q2: We use a __________ to input text into the computer.
Ans: Keyboard
We press the keys on the keyboard to type text into the computer.
Q3: The device that helps us point and click is the __________.
Ans: Mouse
The mouse is used to point at items on the screen and click on them to open or select things.
Q4: A __________ stores data like songs and videos.
Ans: Pen drive
A pen drive is used to store and transfer data, such as songs and videos, from one computer to another.
Q5: The __________ shows images and videos on the computer.
Ans: Monitor
The monitor displays all the images, videos, and information from the computer, just like a TV screen.

True or False Statements

Q1: A mouse can store data. (True/False)

Ans: False- A mouse is used to point and click, but it does not store data. A pen drive or hard drive stores data.

Q2: The keyboard is used to type text. (True/False)

Ans: True- The keyboard is the device we use to type text on the computer, just like writing on paper.

Q3: The CPU is responsible for processing information. (True/False)

Ans: True- The CPU processes all the information and commands in a computer, making it work.

Q4: You should eat near computers in the lab. (True/False)

Ans: False- Eating near computers is not a good idea because food can damage the computer and create a mess.

Q5: The power button starts the computer. (True/False)

Ans: True- Pressing the power button turns the computer on, starting it up.

Crossword Puzzle

​(Fill in the boxes using the clues given below to complete the crossword

Match the Following

​​(Match Column A to Column B)

Ans:

1. Monitor - C. Displays images

2. CPU - A. Brain of the computer

3. Keyboard - B. Used to type

4. Mouse - D. Points and clicks

5. Pen drive - E. Stores data

Solution:  

1. Monitor - C. Displays images

Explanation: The monitor shows images, videos, and information on the screen.

2. CPU - A. Brain of the computer

Explanation: The CPU is the part of the computer that processes information and controls all tasks, like the brain of a person.

3. Keyboard - B. Used to type

Explanation: The keyboard is used to type text, letters, and numbers into the computer.

4. Mouse - D. Points and clicks

Explanation: The mouse is used to move the pointer on the screen and click on things.

5. Pen drive - E. Stores data

Explanation: The pen drive is a small device used to store and transfer data, like songs, videos, and documents.