💻 Class 1 Computer – Chapter 1: Introduction to Computer
🔹 1. What is a Computer?
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A computer is an electronic machine.
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It helps us to do many kinds of work quickly and easily.
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It can store, remember, and show information.
👉 Example:
We can use a computer to draw pictures, play games, listen to music, or study.
🔹 2. Uses of a Computer
A computer helps us in many places.
| Place | How Computer is Used |
|---|---|
| 🏫 School | For teaching, making report cards, and drawing. |
| 🏦 Bank | To keep money records and update accounts. |
| 🏥 Hospital | To keep patients' records and show x-rays. |
| 🏢 Office | To type letters and store information. |
| 🏠 Home | To play games, watch movies, and study online. |
| 🏪 Shops | To make bills and count money. |
🔹 3. Computer – A Smart Machine
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A computer never gets tired.
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It works very fast.
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It does not make mistakes.
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It can store a lot of data.
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It works when we give commands.
🧠 So, we call it a smart machine!
🔹 4. What a Computer Can Do
✅ Add numbers
✅ Draw pictures
✅ Type words
✅ Play songs and videos
✅ Show cartoons and movies
✅ Help in studying and learning
🔹 5. What a Computer Cannot Do
❌ It cannot think on its own.
❌ It cannot feel happy or sad.
❌ It works only when we tell it what to do.
🔹 6. Main Features of a Computer
| Feature | Description |
|---|---|
| Fast | Works faster than humans. |
| Accurate | Gives correct answers. |
| Smart | Follows commands properly. |
| Storage | Remembers things for a long time. |
| Reliable | Works without getting tired. |
🔹 7. Difference Between Human and Computer
| Human | Computer |
|---|---|
| Can think and feel | Cannot think or feel |
| Can make mistakes | Does not make mistakes |
| Gets tired | Never gets tired |
| Works slowly | Works very fast |
🔹 8. Parts of a Computer (Basic Introduction)
| Part | Function |
|---|---|
| Monitor 🖥️ | Shows pictures and words. |
| CPU (Central Processing Unit) 🧠 | Brain of the computer. |
| Keyboard ⌨️ | Used for typing letters and numbers. |
| Mouse 🖱️ | Used to point and click. |
| Speakers 🔊 | Used to listen to sounds or music. |
| Printer 🖨️ | Used to print pictures or documents. |
🔹 9. Safety Rules While Using a Computer
✅ Sit properly on the chair.
✅ Do not touch wires or plugs.
✅ Do not press keys hard.
✅ Keep food and water away from the computer.
✅ Always shut down the computer properly.
🔹 10. Fun Facts about Computers
💡 The word “Computer” comes from the word ‘Compute’ which means ‘to calculate’.
💡 The first computer was very big like a room.
💡 Today, we have small computers like laptops and tablets.
🧠 Quick Revision Table
| Topic | Key Points |
|---|---|
| What is a computer? | A smart electronic machine. |
| What can it do? | Type, draw, calculate, play. |
| Where used? | School, bank, hospital, home. |
| Computer can’t… | Think or feel. |
| Main parts | Monitor, CPU, keyboard, mouse. |
| Rules | Sit properly, handle carefully. |
🧩 Exercise / MCQs
1️⃣ A computer is an ______ machine.
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(a) electric
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(b) smart
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(c) wooden
✅ Answer: (b) smart
2️⃣ The brain of the computer is ______.
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(a) Mouse
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(b) CPU
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(c) Monitor
✅ Answer: (b) CPU
3️⃣ A computer works ______ than humans.
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(a) faster
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(b) slower
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(c) sometimes
✅ Answer: (a) faster
4️⃣ A computer can ______ pictures.
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(a) draw
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(b) eat
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(c) sleep
✅ Answer: (a) draw
5️⃣ We use a ______ to type.
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(a) mouse
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(b) keyboard
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(c) monitor
✅ Answer: (b) keyboard
✨ Summary
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A computer is a smart electronic machine.
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It helps us to do work quickly and correctly.
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It never gets tired or makes mistakes.
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But it cannot think or feel.
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We must use it carefully and politely.