Operating System – Basic 3 Computer Studies Lesson Note (First Term)

What is an Operating System?

An operating system (OS) is the main software that controls how a computer works. It’s like the manager of all programs.

Types of Operating Systems

Windows:

• Made by Microsoft company
• Most common on home computers
• Has a start button and desktop
• Easy to use with mouse clicks

Linux:

• Free operating system
• Used by computer experts
• Very secure and safe
• Can run on old computers

Ubuntu:

• A type of Linux
• Free for everyone to use
• Orange and purple colors
• Good for schools and learning

Exercise 2: Match correctly:

• Most common OS: _______
• Free operating system: _______
• Made by Microsoft: _______
• Type of Linux: _______

CLASS ACTIVITIES

Technology Comparison

Look at these pairs and circle the developed technology:

• Candle / Electric bulb
• Walking / Car
• Hand fan / Electric fan
• Clay pot / Refrigerator

Operating System Hunt

If you have a computer in class:

1. Look at the screen when it starts
2. Can you see which operating system it uses?
3. Draw the desktop you see

Exercise 3: True or False?

• Cars are developed technology: _____
• Ubuntu is a type of Windows: _____
• Developed technology uses electricity: _____
• Linux is free to use: _____

HOMEWORK

1. Count 5 developed technologies in your house
2. Ask your parents what operating system your family computer uses
3. Compare a broom and a vacuum cleaner – which is more developed?

Teacher’s Signature: ___________