CBSE Class 9 ICT Skills Important Subjective Questions & Answers (2026–27) | Unit 3 Employability Skills
Class 9 · Artificial Intelligence
CBSE Class 9 ICT Skills Important Subjective Questions & Answers (2026–27)
Prepare for your CBSE Class 9 Employability Skills examination with these 25 important subjective questions and answers from Unit 3: Information and Communication Technology (ICT) Skills. These questions follow the latest CBSE syllabus (2026–27) and provide simple, exam-oriented answers suitable for Unit Tests, Half-Yearly, Annual Examinations, and competency-based assessments.
Topics Covered
- Introduction to ICT
- Uses of ICT
- Mobile Devices and Their Features
- Computer System and CPU
- Input and Output Devices
- Memory Units
- Keyboard and Mouse Operations
- Files and Folders
- Internet and Web Browsing
- E-mail and Password Security
CBSE Exam Tip: Learn the definitions, computer components, shortcut keys, internet terms, and e-mail concepts carefully. Draw simple diagrams wherever applicable and underline important keywords to score better in subjective questions.
Subjective Questions with Answers
Q1. Define ICT and explain its importance in the workplace.
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Answer:
Information and Communication Technology (ICT) refers to the use of computers, mobile devices, software, and communication technologies to create, store, process, retrieve, and share information.
ICT is important in the workplace because it helps employees to:
- Communicate quickly and effectively.
- Store and retrieve information easily.
- Share files through computer networks.
- Increase productivity and efficiency.
- Work collaboratively with colleagues.
Q2. Give any two practical examples of how ICT is used at home.
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Answer:
Two common uses of ICT at home are:
- Shopping online using e-commerce websites or mobile apps.
- Watching movies, attending online classes, or reading e-books through the internet.
Q3. What key skills are required to use ICT effectively?
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Answer:
To use ICT effectively, a person should have the following skills:
- Ability to operate computers and smartphones.
- Knowledge of using software applications.
- Ability to search for information on the internet.
- Knowledge of online communication tools such as e-mail and video conferencing.
- Basic understanding of digital safety and security.
Q4. List any four ICT tools commonly used today.
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Answer:
Four commonly used ICT tools are:
- Desktop Computer
- Laptop
- Smartphone
- Tablet
These devices help users create, store, process, and share information efficiently.
Q5. Explain the main differences between a smartphone and a tablet.
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Answer:
| Smartphone | Tablet |
|---|---|
| Mainly used for calling, messaging, and internet access. | Mainly used for reading, watching videos, browsing, and educational purposes. |
| Smaller in size and easy to carry. | Larger screen with better viewing experience. |
| Supports voice calling. | Some tablets support calling, while many do not. |
Q6. Describe the function of the Power button on a mobile device.
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Answer:
The Power button is used to switch the mobile device on or off. It can also be used to lock or unlock the screen and restart the device when required.
Q7. What is the purpose of the 'Back' button in a mobile application?
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Answer:
The Back button is used to return to the previous screen or page within an application. It helps users navigate easily without closing the application.
Q8. Explain the roles of the Microphone and Earpiece during a voice call.
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Answer:
- Microphone: It captures your voice and sends it to the person on the other end of the call.
- Earpiece: It allows you to hear the voice of the person speaking during the call.
Q9. How do Bluetooth and GPS function as important features of a smartphone?
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Answer:
- Bluetooth is a wireless technology used to connect nearby devices such as headphones, speakers, keyboards, and smartwatches.
- GPS (Global Positioning System) helps determine the user's location and provides navigation and directions through maps.
Q10. Define a computer system and name its three main internal units.
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Answer:
A computer system is an electronic programmable machine that accepts data, processes it, stores it, and produces useful information.
The three main internal units of a computer are:
- Input Unit
- Central Processing Unit (CPU)
- Output Unit
Q11. What specific role does the Arithmetic and Logic Unit (ALU) play?
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Answer:
The Arithmetic and Logic Unit (ALU) is a part of the CPU that performs all arithmetic calculations and logical operations.
Its main functions are:
- Performing mathematical calculations such as addition, subtraction, multiplication, and division.
- Comparing values using logical operations like greater than, less than, and equal to.
- Processing data before sending the results to other parts of the computer.
Q12. How does the Control Unit (CU) act as the manager of the CPU?
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Answer:
The Control Unit (CU) controls and coordinates all the activities of the computer. It receives instructions, directs the flow of data between different components, and ensures that every task is performed in the correct sequence.
Q13. Compare Random Access Memory (RAM) and Read-Only Memory (ROM).
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Answer:
| RAM | ROM |
|---|---|
| Temporary (volatile) memory. | Permanent (non-volatile) memory. |
| Stores data currently being used by the computer. | Stores startup instructions required to boot the computer. |
| Data is lost when the power is switched off. | Data remains even after the power is switched off. |
| Can be read and written. | Mainly read-only and cannot be modified easily. |
Q14. List four types of computer ports and explain their uses.
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Answer:
| Port | Use |
|---|---|
| USB Port | Connects devices such as keyboard, mouse, pen drive, printer, and mobile phone. |
| HDMI Port | Transfers high-quality audio and video to monitors or projectors. |
| Ethernet Port | Connects the computer to a wired internet network. |
| Power Port | Supplies electrical power to the computer. |
Q15. What are the purposes of a Barcode Reader and a Scanner?
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Answer:
- Barcode Reader: It is an input device used to read barcodes printed on products and retrieve product information.
- Scanner: It is an input device used to convert printed documents or photographs into digital form for storage and editing.
Q16. Describe five different types of keys found on a standard keyboard.
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Answer:
The five main types of keyboard keys are:
- Alphanumeric Keys – Used for typing letters and numbers.
- Function Keys (F1–F12) – Perform special functions.
- Special Keys – Examples include Ctrl, Alt, Shift, and Esc.
- Navigation Keys – Arrow keys, Home, End, Page Up, and Page Down help move the cursor.
- Punctuation Keys – Used to type punctuation symbols such as comma, full stop, and question mark.
Q17. Explain the mouse function known as 'dragging'.
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Answer:
Dragging means pressing and holding the left mouse button while moving the mouse. It is commonly used to move files, folders, icons, or select text and objects on the screen.
Q18. Why is it important to understand how files and folders are organized in a computer?
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Answer:
Proper organization of files and folders helps users:
- Store information systematically.
- Find documents quickly.
- Avoid duplication of files.
- Protect important data.
- Manage computer storage efficiently.
Q19. Identify the keyboard shortcuts for Copy, Cut, and Paste.
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Answer:
| Operation | Shortcut Key |
|---|---|
| Copy | Ctrl + C |
| Cut | Ctrl + X |
| Paste | Ctrl + V |
Q20. What is an Internet Service Provider (ISP)?
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Answer:
An Internet Service Provider (ISP) is a company or organization that provides internet connectivity to users through wired or wireless networks. Without an ISP, users cannot access the internet.
Q21. Describe three common uses of the Internet as listed in the textbook.
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Answer:
The Internet is used for many purposes. Three common uses are:
- Searching for Information – Finding educational materials, news, and general information.
- Online Learning – Attending virtual classes, watching educational videos, and enrolling in online courses.
- Online Banking – Checking account balances, transferring money, and paying bills online.
Q22. Define the World Wide Web (WWW).
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Answer:
The World Wide Web (WWW) is a collection of interconnected web pages and websites available on the Internet. It allows users to access information, images, videos, and other online resources through a web browser.
Q23. List the steps to search for information effectively using a web browser.
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Answer:
Follow these steps to search for information:
- Open a web browser such as Google Chrome or Mozilla Firefox.
- Type the required topic or keyword in the search box.
- Press the Enter key.
- View the search results.
- Select a suitable website to obtain the required information.
Q24. Compare traditional postal mail with electronic mail (e-mail).
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Answer:
| Postal Mail | |
|---|---|
| Requires physical letters and envelopes. | Sends digital messages through the Internet. |
| Takes days to reach the receiver. | Delivered within seconds. |
| Requires postal services. | Requires an Internet connection and an e-mail account. |
| Cannot easily send digital files. | Can send documents, images, videos, and other files as attachments. |
Q25. What characteristics make an e-mail account password secure?
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Answer:
A secure e-mail password should have the following characteristics:
- It should be unique and difficult to guess.
- It should contain a combination of uppercase letters, lowercase letters, numbers, and special characters.
- It should not be shared with anyone.
- It should be changed regularly.
- It should avoid using personal information such as names or dates of birth.
❓ Quick Revision
- ICT stands for Information and Communication Technology.
- Common ICT tools include desktop computers, laptops, smartphones, and tablets.
- A computer system consists of the Input Unit, CPU, and Output Unit.
- The CPU contains the Arithmetic and Logic Unit (ALU) and the Control Unit (CU).
- RAM is temporary memory, whereas ROM is permanent memory.
- Important computer ports include USB, HDMI, Ethernet, and Power Port.
- Remember the keyboard shortcuts: Ctrl + C (Copy), Ctrl + X (Cut), Ctrl + V (Paste).
- An Internet Service Provider (ISP) provides Internet connectivity.
- The World Wide Web (WWW) is a collection of interconnected web pages available on the Internet.
- A strong e-mail password should be unique, confidential, regularly updated, and include letters, numbers, and special characters.
? Exam Tip
For the CBSE Class 9 Employability Skills examination, remember the definitions of ICT, WWW, and ISP, the functions of ALU, CU, RAM, and ROM, computer ports, input devices, keyboard shortcuts, Internet applications, and e-mail security. Use simple language, draw neat diagrams wherever applicable, and underline important keywords to score maximum marks in subjective questions.