Unit 1: Introduction to Computers
— Questions & Answers

1. What is a computer?
   → A computer is an electronic machine that helps us type, calculate, watch videos, and browse the internet.
2. What are the main parts of a computer?
   → Input, storage, processor, and output.
3. What is input in a computer?
   → Giving information to the computer using input devices.
4. What are examples of input devices?
   → Keyboard, mouse, scanner, microphone.
5. What does input data do?
   → It sends signals to the computer to tell it what to do.
6. What is storage in a computer?
   → Saving information so we can use it later.
7. What are examples of storage devices?
   → Hard Disk Drive (HDD), Solid-State Drive (SSD), Flash Drive (USB).
8. How is data stored in a computer?
   → As 0s and 1s (binary code).
9. What is processing in a computer?
   → Working with data to get results.
10. What part of the computer does processing?
    → The CPU (Central Processing Unit).
11. What are the main parts of the CPU?
    → ALU (does math and logic) and Control Unit (manages data movement).
12. What does the CPU do with data?
    → It calculates, compares, and changes data.
13. What is output in a computer?
    → Showing results of processed data.
14. What are examples of output devices?
    → Monitor, printer, speakers.
15. What does output data do?
    → It shows results in a way we can understand.
16. What are the 4 steps of how a computer works?
    → Input → Store → Process → Output.
17. Why do we use computers?
    → For learning, working, playing games, and communication.
18. What is binary code?
    → A way of storing data using 0s and 1s.
19. What is the brain of the computer?
    → The CPU.
20. What helps us interact with computers?
    → Input and output devices.

Unit 2: Computer Hardware and Software
— Questions & Answers

1. What is computer hardware?
   → The physical parts of a computer that you can touch and see.
2. What are examples of hardware?
   → Input devices, output devices, CPU, and system unit.
3. What is a keyboard used for?
   → Typing text and giving commands to the computer.
4. What are the types of keyboards?
   → Wired Keyboard and Wireless Keyboard.
5. What is a mouse used for?
   → Moving the cursor and interacting with items on the screen.
6. What are the types of mice?
   → Wired Mouse and Wireless Mouse.
7. What does a monitor do?
   → Shows text, images, and videos from the computer.
8. What does a printer do?
   → Prints documents and pictures from the computer.
9. What are the types of printers?
   → Inkjet Printer and Laser Printer.
10. What is the CPU?
    → The brain of the computer that processes instructions and tasks.
11. What does the CPU do?
    → Executes instructions, calculates, and controls operations.
12. What is the system unit?
    → The main body of a desktop computer that holds internal parts.
13. What does the system unit contain?
    → CPU, memory, motherboard, power supply, and storage drives.
14. What is computer software?
    → A set of instructions that tells the computer what to do.
15. Can you touch software?
    → No, software is not physical.
16. What are the main types of software?
    → System Software, Application Software, Utility Software, Programming Software.
17. What is system software?
    → Software that manages hardware and runs other programs.
18. What are examples of system software?
    → Windows 11 and MacOS.
19. What is application software?
    → Software that helps users do tasks like writing or browsing.
20. What are examples of application software?
    → Microsoft Word, Google Chrome, Adobe Photoshop.
21. What is utility software?
    → Software that helps clean, protect, and improve your computer.
22. What are examples of utility software?
    → Avast Antivirus, 360 Total Security.
23. What is programming software?
    → Software used to write, test, and fix other programs.
24. What are examples of programming software?
    → Visual Studio Code, C++ Compiler.

Unit 3: Understanding Operating Systems
— Questions & Answers

1. What is an operating system (OS)?
   → It is the main software that helps a computer or device work.
2. What does an operating system do?
   → It starts the device, runs apps, saves files, and connects to other devices.
3. Can a computer work without an OS?
   → No, it cannot function without an operating system.
4. What happens when you turn on a device?
   → The operating system loads and starts working.
5. How does an OS help with applications?
   → It opens and manages programs like Word or Chrome.
6. How does an OS manage files?
   → It helps you save, open, and organize documents.
7. How does an OS control hardware?
   → It connects to printers, keyboards, screens, and other devices.
8. How does an OS protect your system?
   → It provides security from viruses and errors.
9. What is a single-user operating system?
   → It allows one person to use the computer at a time.
10. Where is a single-user OS used?
    → In homes, schools, and offices.
11. What are examples of single-user OS?
    → Windows 10 and macOS Ventura.
12. What is a multi-user operating system?
    → It allows many users to access the same system at once.
13. Where is a multi-user OS used?
    → In companies, universities, and data centers.
14. What are examples of multi-user OS?
    → Linux (Ubuntu Server) and UNIX.
15. What is a mobile operating system?
    → It is made for smartphones and tablets.
16. What does a mobile OS do?
    → It runs apps, manages touchscreens, and connects to mobile networks.
17. What are examples of mobile OS?
    → Android and iOS.
18. What is a real-time operating system (RTOS)?
    → It is used in machines that need fast and accurate responses.
19. Where is RTOS used?
    → In robots, airplanes, and medical tools.
20. What are examples of RTOS?
    → FreeRTOS and VxWorks.
21. What is Windows OS?
    → A popular OS used in schools, offices, and homes.
22. What are examples of Windows OS?
    → Windows 10 and Windows 11.
23. What is macOS?
    → An OS made by Apple for Mac computers.
24. What are examples of macOS?
    → macOS Monterey and macOS Ventura.
25. What is Linux?
    → A free and open-source OS used by programmers and companies.
26. What are examples of Linux?
    → Ubuntu, Fedora, and Debian.
27. What is Android OS?
    → A mobile OS used in smartphones and tablets.
28. What are examples of Android and iPhone OS?
    → Android 12, Android 13; iPhone 12, iPhone 15.
29. Which phones use Android and iOS?
    → Samsung, Tecno, Huawei, and iPhones.
30. What is the role of an operating system?
    → It helps devices work properly by managing apps, files, and hardware.
31. What are the main types of operating systems?
    → Single-user, multi-user, mobile, and real-time OS.

Unit 4: Working with Files and Folders
— Questions & Answers

1. What is a file?
   → A file is something you create or use on a computer, like a document, picture, video, or song.
2. What is a folder?
   → A folder is a digital container that holds files to keep them organized.
3. What are examples of files?
   → Homework, photos, music, videos, and notes.
4. Why do we use folders?
   → To group related files together and stay organized.
5. What are text file types?
   → .docx, .txt, .pdf
6. What are image file types?
   → .jpg, .png
7. What are video file types?
   → .mp4, .avi
8. What are audio file types?
   → .mp3, .wav
9. How do you create a new file?
   → Use programs like Microsoft Word or Paint.
10. How do you create a new folder?
    → Right-click and choose “New Folder.”
11. Why should you name your folder clearly?
    → So you know what’s inside and stay organized.
12. Why is saving your work important?
    → To keep your work safe and avoid losing it.
13. What is the shortcut to save quickly?
    → Press Ctrl + S
14. What is the difference between “Save” and “Save As”?
    → “Save” updates the file; “Save As” makes a copy with a new name.
15. Why rename a file or folder?
    → To make the name clear and easy to find.
16. How do you rename a file or folder?
    → Right-click it, choose “Rename,” and type a new name.
17. What symbols should you avoid in names?
    → / \ * ? and other special characters.
18. How do you delete a file or folder?
    → Right-click and choose “Delete” or press the Delete key.
19. Where do deleted files go first?
    → To the Recycle Bin.
20. Why empty the Recycle Bin?
    → To free up space on your computer.
21. How do you move a file into a folder?
    → Drag it or use copy and paste.
22. Why move files into folders?
    → To keep your computer neat and tidy.
23. What is a good tip for organizing files?
    → Group similar files together, like all schoolwork in one folder.
24. What is the purpose of using files and folders?
    → To save your work and keep everything organized.
25. What are the basic actions you can do with files?
    → Create, save, rename, delete, and move them.

Unit 5: Introduction to Microsoft Word
— Questions & Answers

1. What is Microsoft Word?
   → A computer program used to write and edit documents.
2. What can you do with Microsoft Word?
   → Type letters, school work, notes, and more.
3. Why is Microsoft Word useful?
   → It helps make your writing neat and professional.
4. What is Microsoft Word used for?
   → Writing, editing, formatting, and printing documents.
5. What is the common file type for Word documents?
   → .docx
6. What does formatting text mean?
   → Changing how text looks, like making it bold or italic.
7. What does bold text do?
   → Makes the text darker and stronger.
8. What does italic text do?
   → Slants the text.
9. What does underline do?
   → Adds a line under the text.
10. What is font in Word?
    → The style and size of letters.
11. How do you add pictures in Word?
    → Use “Insert Picture” to add images from your computer.
12. What is a table used for in Word?
    → To organize information in rows and columns.
13. How do you save your work in Word?
    → Use Ctrl + S or click the Save icon.
14. Why is saving important?
    → To keep your work safe and avoid losing it.
15. How do you print a document in Word?
    → Go to File > Print and choose your printer and settings.
16. What are the main features of Microsoft Word?
    → Typing, formatting, adding pictures and tables, saving, and printing.
17. Why use Microsoft Word for school or work?
    → It helps create neat and professional-looking documents.

Unit 6: Microsoft Excel Basics
— Questions & Answers

1. What is Microsoft Excel?
   → A computer program used to work with numbers and information.
2. What can you do with Microsoft Excel?
   → Organize data, do calculations, and create charts.
3. Why is Microsoft Excel useful?
   → It helps with school, business, and everyday tasks like budgeting.
4. What is Microsoft Excel used for?
   → Math, data entry, record keeping, and analysis.
5. What is the common file type for Excel?
   → .xlsx
6. What are rows in Excel?
   → Horizontal lines labeled with numbers (1, 2, 3…).
7. What are columns in Excel?
   → Vertical lines labeled with letters (A, B, C…).
8. What is a cell in Excel?
   → A box where you enter data, like A1 or B2.
9. How do you add numbers in Excel?
   → Use =A1 + B1.
10. How do you subtract numbers in Excel?
    → Use =A1 - B1.
11. How do you multiply numbers in Excel?
    → Use =A1 * B1.
12. How do you divide numbers in Excel?
    → Use =A1 / B1.
13. What is a bar chart in Excel?
    → A chart that shows data using bars.
14. What is a pie chart in Excel?
    → A chart that shows parts of a whole.
15. What is a line chart in Excel?
    → A chart that shows changes over time.
16. What are the main features of Excel?
    → Rows and columns, formulas for calculations, and chart creation.
17. Why use Microsoft Excel for school or work?
    → It makes math and data easy to manage and fun to explore.

Unit 7: Internet and Browsing
— Questions & Answers

1. What is the internet?
   → A global network that connects millions of computers and devices.
2. What can you do on the internet?
   → Share information, send messages, watch videos, play games, and learn.
3. Where can you use the internet?
   → At home, school, or on your phone.
4. What is the internet used for?
   → Research, communication, entertainment, shopping, and learning.
5. What are some examples of internet services?
   → Google, YouTube, Wikipedia, Facebook.
6. What is a web browser?
   → A program that helps you visit websites on the internet.
7. What does a browser show you?
   → Pages, pictures, videos, and links.
8. What are some popular web browsers?
   → Google Chrome, Microsoft Edge, Mozilla Firefox, Safari.
9. How do you open a browser?
   → Click the browser icon on your device.
10. What is the first step to browse the internet?
    → Open a browser like Chrome or Edge.
11. What do you type in the browser to start?
    → A website address (e.g., www.google.com) or search keywords.
12. How do you explore websites?
    → Click on links to go to other pages, watch videos, or read more.
13. What does the back button do?
    → Takes you to the previous page you visited.
14. What are bookmarks used for?
    → To save your favorite websites for easy access later.
15. Why is the internet important?
    → It helps you find information, learn, and have fun.
16. Why do we use browsers like Chrome or Edge?
    → To visit websites and explore the internet safely and smartly.

Unit 8: Email Essentials
— Questions & Answers

1. What is email?
   → A way to send and receive messages using the internet.
2. Who can you talk to using email?
   → Friends, teachers, or workmates anywhere in the world.
3. Why is email useful?
   → It’s fast, free, and easy to use.
4. What is email used for?
   → Sending messages, documents, pictures, and links.
5. What are examples of email services?
   → Gmail, Yahoo Mail, Outlook.
6. What is the first step to send an email?
   → Create an email account.
7. Where can you sign up for an email account?
   → Websites like Gmail.com or Outlook.com.
8. What do you need to create an email account?
   → A username and password.
9. What is an example of an email address?
   → yourname@gmail.com
10. What makes a good password?
    → Easy to remember but hard for others to guess.
11. How do you start writing an email?
    → Click “Compose” or “New Message”.
12. What do you type in the “To” field?
    → The person’s email address (e.g., teacher@example.com).
13. What is the subject of an email?
    → The title or topic of your message.
14. What do you write in the message box?
    → Your actual message or information you want to send.
15. How do you send the email?
    → Click the “Send” button.
16. Why is email important for school or work?
    → It helps you communicate quickly and share important information.

Unit 9: Basic Computer Security
— Questions & Answers

1. What is computer security?
   → Protecting your computer and personal information from harm.
2. Why is computer security important?
   → It keeps your files safe, passwords private, and devices free from viruses.
3. What is computer security used for?
   → Protecting data, avoiding scams, and keeping devices healthy.
4. Who needs computer security?
   → Students, families, businesses—everyone online.
5. What is a strong password?
   → A password with letters, numbers, and symbols that is hard to guess.
6. Should you share your password with others?
   → No, never share your password.
7. What is an example of a strong password?
   → Rockview@2025!
8. What should you avoid when creating a password?
   → Don’t use your name or birthday.
9. Why avoid unknown links and downloads?
   → They may contain harmful software or tricks to steal your information.
10. Where should you download files from?
    → Only from trusted websites.
11. What should you do if unsure about a link or download?
    → Ask an adult or teacher.
12. What is antivirus software?
    → A program that protects your computer from harmful programs.
13. What does antivirus software do?
    → Scans your system and removes threats.
14. What are examples of antivirus software?
    → Avast, 360 Total Security, Windows Defender.
15. Why keep antivirus software updated?
    → To stay protected against new threats.
16. What is a computer virus?
    → A harmful program that can damage your computer or steal data.
17. Where do viruses come from?
    → Unsafe downloads or infected USB drives.
18. What are signs of a virus?
    → Slow computer, lost files, strange behavior.
19. How do you protect against viruses?
    → Use antivirus and avoid unknown files.
20. What is phishing?
    → Fake emails or messages that try to trick you.
21. What is an example of phishing?
    → “Click here to win a prize!”
22. What should you do with suspicious messages?
    → Never give your password or click suspicious links.
23. Why is it important to think before you click?
    → To stay safe and protect your personal information.

Unit 10: Basic Troubleshooting
— Questions & Answers

1. What is troubleshooting?
   → Finding and fixing problems with your computer.
2. Why is troubleshooting important?
   → It helps your computer run better and saves time.
3. What is troubleshooting used for?
   → Solving computer issues and improving performance.
4. Who needs troubleshooting skills?
   → Students, teachers, office workers—everyone who uses a computer.
5. What should you do if your computer is slow?
   → Restart it to clear temporary files and refresh the system.
6. How do you restart a computer?
   → Click Start > Power > Restart.
7. What tip helps before restarting?
   → Close unused programs.
8. What should you check if a device isn’t working?
   → Check the cables and make sure everything is plugged in properly.
9. How do you fix a device connection issue?
   → Unplug and plug back in.
10. What tip helps with device issues?
    → Try a different USB port.
11. What should you do if software has errors?
    → Update the program or system.
12. How do you check for updates?
    → Go to Settings > Update & Security > Check for updates.
13. Why keep your system updated?
    → Updates fix bugs and improve performance.
14. What should you do if you’re not sure how to fix a problem?
    → Ask a teacher, parent, or tech expert for help.
15. Where can you search for solutions?
    → Use trusted websites or video tutorials.
16. What tip helps when searching online?
    → Use Google or YouTube for step-by-step guides.
17. What helps when looking for answers?
    → Write down the error message.
18. What are common problems you can troubleshoot?
    → Slow speed, device errors, and software bugs.
19. What are easy steps anyone can try?
    → Restarting, checking cables, and updating software.
20. Why is learning to troubleshoot useful?
    → It makes you a smarter computer user.

Go 📖 Units

• Unit 1
• Unit 2
• Unit 3
• Unit 4
• Unit 5
• Unit 6
• Unit 7
• Unit 8
• Unit 9
• Unit 10
• Unit 11
• Unit 12