CBSE CLASS 10 COMPUTER APPLICATIONS • CODE 165 • 2026–27
Use this CBSE Class 10 Computer Applications study material hub to prepare for the current Computer Applications (Code 165) course. The 2026–27 curriculum is organised around Networking, HTML, Cyber Ethics and Practicals. XAM CONTENT already has chapterwise Case Study and Assertion–Reason resources for major topics, while the official CBSE curriculum and sample paper provide the final reference for syllabus scope and assessment.
Board
CBSE
Class
10
Subject Code
165
Theory
50 Marks
Practicals
50 Marks
Total
100 Marks
USE THE CBSE UNIT STRUCTURE
This course is organised by syllabus units, not an NCERT chapter sequence
For this subject hub, the official CBSE Computer Applications curriculum is the organising reference.
XAM CONTENT’s existing “Chapter 1–6” labels are useful resource groupings, but students should always compare them
with the current Unit 1 Networking, Unit 2 HTML and Unit 3 Cyber Ethics syllabus before final revision.
OFFICIAL STARTING POINTS
Current CBSE Syllabus, Sample Paper and Marking Scheme
Use these three official resources as the final reference for 2026–27 preparation.
OFFICIAL CBSE
Computer Applications Curriculum 2026–27
Current Networking, HTML, Cyber Ethics, lab exercises and practical-assessment requirements.
OFFICIAL SAMPLE PAPER
Computer Applications SQP 2026–27
50-mark, 2-hour theory paper with MCQs, short answers, HTML coding and source/case-based questions.
OFFICIAL MARKING SCHEME
Computer Applications Marking Scheme
Use it to check how CBSE awards marks for definitions, explanations, HTML syntax and case-based responses.
CLASS HUB
CBSE Class 10 Study Material
Return to the main Class 10 hub for Maths, Science, Social Science, English and other resources.
COURSE STRUCTURE
CBSE Class 10 Computer Applications Marks Distribution
Theory contributes 50 marks and practical work contributes another 50 marks.
| Unit | Area | Marks |
|---|---|---|
| 1 | Networking | 15 |
| 2 | HTML | 25 |
| 3 | Cyber Ethics | 10 |
| 4 | Practicals | 50 |
| Total | 100 | |
UNIT 1 • NETWORKING
Internet, Protocols, Web Services and Mobile Technologies
This unit carries 15 theory marks in the current curriculum.
Internet concepts: WWW, web servers, clients, websites, web pages, browsers, blogs, news groups, web and email addresses, uploading and downloading.
Protocols: TCP/IP, SMTP, POP3, HTTP, HTTPS, SSH, SFTP, FTP, SCP and TELNET.
Internet services: information retrieval, search engines, chat, email, video conferencing, e-learning, e-banking, e-shopping, e-reservation, e-governance, e-groups and social networking.
Mobile technologies: SMS, MMS, 3G, 4G and 5G.
CASE STUDY
Introducing Internet
Passage-based practice on Internet, browsers, web concepts, addresses and related networking ideas.
CASE STUDY
Internet Services & Mobile Technologies
Context-based practice covering services, protocols and mobile communication concepts.
ASSERTION & REASON
Introducing Internet
Reasoning practice on fundamental Internet and networking concepts.
ASSERTION & REASON
Internet Services & Mobile Technologies
Logical-reasoning practice for services, communication and Internet-use concepts.
CHECK OLDER NETWORKING PAGES AGAINST THE CURRENT SYLLABUS
Some existing XAM CONTENT pages were created before the 2026–27 curriculum. For example, the current syllabus explicitly includes
5G. Use the official curriculum above to identify any newer additions before final revision.
UNIT 2 • HTML
Web Pages, Forms, Multimedia, Tables, Links and CSS
HTML is the largest theory unit, carrying 25 marks.
Basic structure: html, head, title, body, headings, paragraph, break, horizontal rule and comments.
Text and lists: bold, italics, underline, font attributes, ordered/unordered/description lists, superscript and subscript.
Images and multimedia: image attributes plus audio and video embedding.
Forms: text box, radio button, checkbox, password, list and combo box.
Tables and links: table, tr, th, td, rowspan, colspan, href, mailto and targets.
CSS: colour, background-colour, border-style, margin, height, width, outline, font, align and float.
CASE STUDY
Basic HTML Elements
Practice core tags, attributes, text formatting and basic page structure.
CASE STUDY
More on HTML
Practice richer HTML elements such as links, forms, tables, images and multimedia concepts.
CASE STUDY
Cascading Style Sheets
Application practice on colour, borders, margins, outlines, fonts and page presentation.
ASSERTION & REASON
Basic HTML Elements
Reasoning practice on tags, attributes and core HTML concepts.
FULL REASONING COLLECTION
Computer Applications Assertion & Reason
Browse the available chapterwise Assertion–Reason collection from one page.
FULL CASE-STUDY COLLECTION
Computer Applications Case Study Questions
Access all six existing XAM CONTENT Computer Applications case-study sets from one hub.
UNIT 3 • CYBER ETHICS
Responsible and Secure Digital Behaviour
This unit carries 10 theory marks and also appears naturally in source/case-based questions.
Netiquettes: responsible behaviour and communication online.
Software licensing: software licences and the open-source software movement.
Intellectual property: IPR, plagiarism and digital property rights.
Digital society: freedom of information and the digital divide.
E-commerce safety: privacy, fraud and secure data transmission.
CASE STUDY
Cyberethics
Scenario-based practice on netiquettes, plagiarism, digital rights, privacy and safe online behaviour.
CURRENT CBSE APPLICATION
Cyber Ethics in the Official Sample Paper
The current SQP includes real-life questions on fraudulent emails, OTPs, open-source software, copyright, trademarks and plagiarism.
PRACTICALS • 50 MARKS
Do Not Treat Practical Work as an Extra
Half of the total subject marks come from practical assessment.
| Practical Component | Marks | What It Requires |
|---|---|---|
| Lab Test | 20 | Design one HTML web page based on a given diagram/specification |
| Report File | 15 | At least 10 HTML pages |
| Viva Voce | 5 | Questions based on the report file and concepts used |
| Project | 10 | A project using most of the concepts learned in the course |
| Total | 50 | — |
PRACTICAL STRATEGY
Build small pages repeatedly rather than memorising large blocks of HTML. Practise reading a specification,
deciding which tags/attributes are needed, writing the code, opening it in a browser and correcting errors.
THEORY PAPER
Current 2026–27 Question-Paper Structure
The official sample paper is 50 marks for 2 hours and has five sections.
| Section | Question Type | Marks |
|---|---|---|
| A | 12 × 1-mark questions | 12 |
| B | 7 × 2-mark questions | 14 |
| C | 4 × 3-mark questions | 12 |
| D | 1 × 4-mark long / coding question | 4 |
| E | 2 × 4-mark source / case / passage-based questions | 8 |
| Total | 50 | |
QUICK DIAGNOSTIC
Check Six Core Computer Applications Skills
Attempt each original question before opening the answer.
1. Which protocol is commonly used to retrieve email from a mail server to a client: SMTP or POP3?
Answer: POP3. SMTP is associated with sending email, while POP3 is used for retrieval.
2. Which HTML attribute specifies the path of an image?
Answer: src.
3. Write a hyperlink that opens the user’s email program to send mail to info@example.com.
Answer: <a href="mailto:info@example.com">Email Us</a>
4. Which table attribute is used to make one cell span across three columns?
Answer: colspan="3".
5. What is plagiarism?
Answer: Presenting someone else’s work or ideas as one’s own without proper acknowledgement.
6. Why should a user avoid entering payment details on a site that uses only HTTP?
Answer: HTTP does not provide the encrypted connection expected for secure transmission of sensitive information. For sensitive transactions, users should look for a properly secured HTTPS connection and verify the site.
STUDY ROUTE
How to Prepare Computer Applications Efficiently
Theory and practical work should progress together.
Step 1
Use the official syllabus: turn every bullet in the three theory units into a revision checklist.
Step 2
Learn concepts before terms: understand what a protocol, tag, attribute or licence actually does before memorising its name.
Step 3
Write HTML by hand: board theory includes code-writing and error-correction tasks, so do not rely only on autocomplete.
Step 4
Practise in a browser: create pages, test them and debug incorrect tags or attributes during practical preparation.
Step 5
Add competency practice: use XAM CONTENT Case Study and Assertion–Reason resources after revising each topic.
Step 6
Finish with the official SQP: attempt the 50-mark paper in 2 hours and correct it with the official marking scheme.
MORE LEARNING & TEACHING RESOURCES
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PDF STUDY MATERIALS
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FOR TEACHERS & COACHING
Editable CBSE Teaching Materials
Browse editable Word and PowerPoint teaching, practice and assessment resources.
XAM CONTENT
Complete Computer Applications Case Study Hub
One route to all six existing chapterwise case-study resources.
XAM CONTENT
Computer Applications Assertion & Reason Hub
Use the available chapterwise reasoning sets for concept checking.
FAQ
CBSE Class 10 Computer Applications 2026–27
What is the CBSE subject code for Class 10 Computer Applications?
The subject code is 165.
How are the 100 marks divided?
The curriculum allocates 50 marks to theory and 50 marks to practical assessment.
Which theory unit has the highest weightage?
HTML carries 25 marks, compared with 15 for Networking and 10 for Cyber Ethics.
What is the 2026–27 theory-paper format?
The official sample paper is 50 marks for 2 hours and has five sections: 12 one-mark questions, seven 2-mark questions, four 3-mark questions, one 4-mark question and two 4-mark source/case/passage-based questions.
What does the practical assessment include?
It includes a 20-mark HTML lab test, a 15-mark report file containing at least 10 HTML pages, a 5-mark viva and a 10-mark project.
Are case-based questions part of the current paper?
Yes. The official 2026–27 sample paper includes two 4-mark source/case/passage-based questions in Section E.
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