CBSE Class 11 Computer Science – Free Resources 2026–27

Subject Code 083 | Detailed Notes, Python Practice, MCQs, HOTS and Competency Questions

This TeachGyan resource follows the official CBSE 2026–27 Class XI Computer Science syllabus. The theory paper is 70 marks: Computer Systems and Organisation (10), Computational Thinking and Programming-I (45), and Society, Law and Ethics (15). The practical component is 30 marks. citeturn1view0

Unit 1 – Computer Systems and Organisation

1. Computer Organisation & Memory
2. Software, Translators & Operating Systems
3. Boolean Logic & Logic Circuits
4. Number Systems & Encoding Schemes

Unit 2 – Computational Thinking and Programming-I

1. Problem Solving, Algorithms & Flowcharts
2. Python Basics, Tokens, Variables & Data Types
3. Operators, Expressions, Input/Output & Errors
4. Conditional & Iterative Statements
5. Strings in Python
6. Lists & Tuples
7. Dictionaries, Modules & Practical Programming

Unit 3 – Society, Law and Ethics

1. Digital Footprints, Netiquette & Digital Society
2. Data Protection, IPR & Open Source Licensing
3. Cyber Crime, Cyber Safety & Malware
4. E-Waste, IT Act & Technology and Society

What Each Resource Contains

These are not placeholder/template pages. Each topic contains a topic-specific explanation, worked application, chapter-specific MCQs, HOTS and competency questions, short-answer practice, long-answer practice, practical guidance where relevant, revision points and examination guidance.

CBSE Practical Preparation

CBSE specifies a 30-mark practical component including a lab test, report file and viva, plus a project. The suggested practical work includes Python programs involving conditions, loops, patterns, series, number properties, strings, lists, tuples and dictionaries. citeturn1view0

Official Syllabus

View the official CBSE Class XI Computer Science 2026–27 syllabus.