📚 Subject: Computer Science

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✅ Important Short Questions (From All Chapters)

📘 Chapter 1: Introduction to Computers

• Define computer and its major components.
• What is data and information?
• Write three characteristics of a computer.
• What is IPO cycle?
• Define hardware and software.

📘 Chapter 2: Computer Components

• What is CPU?
• Define RAM and ROM.
• What is the difference between primary and secondary memory?
• Name two input and output devices.
• What is the function of ALU?

📘 Chapter 3: Input/Output Devices

• Write names of five input devices.
• What is an optical mouse?
• Difference between impact and non-impact printers.
• What is a scanner?
• Define softcopy and hardcopy.

📘 Chapter 4: Storage Devices

• What is a hard disk?
• Define USB flash drive.
• Define optical disk.
• Difference between volatile and non-volatile memory.
• What is cloud storage?

📘 Chapter 5: Number System

• Convert binary to decimal and decimal to binary.
• What is ASCII code?
• Difference between analog and digital signals.
• Perform: (1011)₂ + (1101)₂
• Convert (156)₁₀ to binary.

📘 Chapter 6: Boolean Algebra

• Define logic gates.
• Draw symbols of AND, OR, NOT gates.
• Write truth table of NAND gate.
• What is Boolean expression?

📘 Chapter 7: Computer Software

• Define system software and application software.
• What is an operating system?
• Give examples of utility programs.
• What is open-source software?
• Define compiler and interpreter.

📘 Chapter 8: Introduction to Windows

• What is GUI?
• What is Recycle Bin?
• Define shortcut icon.
• What is the purpose of the Control Panel?

📘 Chapter 9: Word Processing (MS Word)

• What is word processing?
• Define mail merge.
• What is the use of the clipboard?
• What is formatting?
• How to insert a table in MS Word?

📘 Chapter 10: Internet

• Define Internet and WWW.
• What is a web browser? Name any two.
• Define email and its parts.
• What is a search engine?
• What is downloading?

📌 More Important Definitions (Very Short Questions)

You should be able to define the following in 2–3 lines:

1. Algorithm
2. Flowchart
3. Cache Memory
4. BIOS
5. Touch Screen
6. Plotter
7. Magnetic Disk
8. Hexadecimal Number System
9. Bit and Byte
10. Software License
11. Device Driver
12. System Tray
13. Taskbar
14. Document Template
15. Search Engine
16. URL
17. IP Address
18. Broadband
19. Firewall
20. Antivirus

📘 Important Long Questions

✅ Attempt any 5 out of the following long questions:

1. What is a computer? Explain its characteristics and basic operations.
2. Describe the components of a computer system in detail.
3. Explain various types of input and output devices with examples.
4. Describe primary and secondary memory in detail.
5. Explain number systems and perform binary to decimal conversions with examples.
6. Write short notes on:
   • Operating System
   • Application Software
7. What is Boolean Algebra? Explain basic logic gates with truth tables.
8. What is MS Word? Explain its features and uses.
9. Write a detailed note on the Internet, web browsers, and email.

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🎯 Important MCQs (Choose the Correct Answer)

• CPU stands for:
  A) Central Process Unit
  B) Central Processing Unit ✅
  C) Control Processing Unit
  D) Computer Personal Unit
• RAM is a type of:
  A) Input device
  B) Output device
  C) Primary memory ✅
  D) Secondary memory
• Which of the following is not an input device?
  A) Keyboard
  B) Mouse
  C) Monitor ✅
  D) Scanner
• Binary number system consists of:
  A) 8 digits
  B) 10 digits
  C) 2 digits ✅
  D) 16 digits
• GUI stands for:
  A) Graphical User Interface ✅
  B) General User Interface
  C) Graphical Unit Interface
  D) None of these

✅ Tip: Also revise board past papers from the last 5 years for maximum preparation!

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Would you like a PDF version, or should I prepare a Urdu-translated guess paper too?

✅ True/False Questions (For MCQ Practice)

Mark these as True (✓) or False (✗):

1. A printer is an input device. → ✗
2. ROM is a non-volatile memory. → ✓
3. The Internet is a part of the World Wide Web. → ✗
4. System software includes operating systems. → ✓
5. Cloud storage is an example of secondary memory. → ✓
6. Compiler translates program line-by-line. → ✗
7. The default extension of Word document is .docx. → ✓
8. Email is faster than postal mail. → ✓
9. AND gate outputs 1 if any input is 1. → ✗
10. Microsoft Word is a programming language. → ✗

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🖥️ Important Practical Topics (for Viva or Lab Exams)

These are commonly asked in practical or internal viva exams:

1. How to open MS Word and create a document.
2. How to change font size and style in MS Word.
3. Steps to insert a table and apply borders.
4. How to use spell check in MS Word.
5. How to save and print a document.
6. Practical on using Calculator for binary addition.
7. Demonstration of Recycle Bin usage.
8. How to rename, delete and move files/folders in Windows.
9. Demonstrate basic Internet browsing using a browser.
10. How to create and send an email.

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