Computer Science
Chapter 1: Computer SystemComputer Systems and Organisation
- 1.1 Introduction to Computer System
- 1.2 Evolution of Computer
- 1.3 Computer Memory
- 1.4 Data Transfer between Memory and CPU
- 1.5 Microprocessors
- 1.6 Data and Information
- 1.7 Software
- 1.8 Operating System
- Summary
- Exercise
- Explore Yourself
Official NCERT PDF (English)
Chapter 2: Encoding Schemes and Number SystemComputer Systems and Organisation
- 2.1 Introduction
- 2.2 Number System
- 2.3 Conversion between Number Systems
- Summary
- Exercise
Official NCERT PDF (English)
Chapter 4: Introduction to Problem SolvingComputational Thinking and Programming -1
- 4.1 Introduction
- 4.2 Steps for Problem Solving
- 4.3 Algorithm
- 4.4 Representation of Algorithms
- 4.5 Flow of Control
- 4.6 Verifying Algorithms
- 4.7 Comparison of Algorithm
- 4.8 Coding
- 4.9 Decomposition
- Summary
- Exercise
Official NCERT PDF (English)
Chapter 5: Getting Started with PythonComputational Thinking and Programming -1
- 5.1 Introduction to Python
- 5.2 Python Keywords
- 5.3 Identifiers
- 5.4 Variables
- 5.5 Comments
- 5.6 Everything is an Object
- 5.7 Data Types
- 5.8 Operators
- 5.9 Expressions
- 5.10 Statement
- 5.11 Input and Output
- 5.12 Type Conversion
- 5.13 Debugging
- Summary
- Exercise
- Case Study-based Question
Official NCERT PDF (English)
Chapter 6: Flow of ControlComputational Thinking and Programming -1
- 6.1 Introduction
- 6.2 Selection
- 6.3 Indentation
- 6.4 Repetition
- 6.5 Break and Continue Statement
- 6.6 Nested Loops
- Exercise
- Summary
- Programming Exercises
- Case Study-based Questions
Official NCERT PDF (English)
Chapter 7: FunctionsComputational Thinking and Programming -1
- 7.1 Introduction
- 7.2 Functions
- 7.3 User Defined Functions
- 7.4 Scope of a Variable
- 7.5 Python Standard Library
- Summary
- Exercise
- Activity-based Questions
- Suggested Lab. Exercises
- Case Study-based Question
Official NCERT PDF (English)
Chapter 8: StringsComputational Thinking and Programming -1
- 8.1 Introduction
- 8.2 Strings
- 8.3 String Operations
- 8.4 Traversing a String
- 8.5 String Methods and Built-in Functions
- 8.6 Handling Strings
- Summary
- Exercise
- Programming Problems
Official NCERT PDF (English)
Chapter 9: ListsComputational Thinking and Programming -1
- 9.1 Introduction to List
- 9.2 List Operations
- 9.3 Traversing a List
- 9.4 List Methods and Built-in Functions
- 9.5 Nested Lists
- 9.6 Copying Lists
- 9.7 List as Argument to a Function
- 9.8 List Manipulation
- Exercise
- Summary
- Programming Problems
Official NCERT PDF (English)
Chapter 10: Tuples and DictionariesComputational Thinking and Programming -1
- 10.1 Introduction to Tuples
- 10.2 Tuple Operations
- 10.3 Tuple Methods and Built-in Functions
- 10.4 Tuple Assignment
- 10.5 Nested Tuples
- 10.6 Tuple Handling
- 10.7 Introduction to Dictionaries
- 10.8 Dictionaries are Mutable
- 10.9 Dictionary Operations
- 10.10 Traversing a Dictionary
- 10.11 Dictionary methods and Built-in functions
- 10.12 Manipulating Dictionaries
- Exercise
- Summary
- Programming Problems
- Case Study-based Question
- Case Study-based Questions
Official NCERT PDF (English)
Chapter 11: Societal ImpactSociety, Law, and Ethics
- 11.1 Introduction
- 11.2 Digital Footprints
- 11.3 Digital Society and Netizen
- 11.4 Data Protection
- 11.5 Cyber Crime
- 11.6 Indian Information Technology Act (IT Act)
- 11.7 Impact on Health
- Summary
- Exercise
Official NCERT PDF (English)
Free sample questions
Three sample questions with answers. Full explanations — and the rest of the question bank — are free to read after you sign up.
Q1. Assertion (A): Evaluating 10 + 12/2 when the average of 10 and 12 is wanted is a logical error. Reason (R): A logical error makes the program stop abruptly with an error message.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Show answer
Correct answer: C. A is true but R is false.
🔒 The full explanation is free to read after you sign up →
Q2. A new company wants to sell sports shoes under the name "Nikke" with a swoosh-like logo, because a well-known brand already uses "Nike". Why is this NOT permitted?
- Copyright does not allow any shoe design
- A trademark also prevents use of a confusingly similar mark
- A patent lasts only for 20 years
- Public licences forbid shoes
Show answer
Correct answer: B. A trademark also prevents use of a confusingly similar mark
🔒 The full explanation is free to read after you sign up →
Q3. Assertion (A): Once a program has been translated by a compiler, the compiler is needed every time the program is executed. Reason (R): An interpreter translates the source code one line at a time.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Show answer
Correct answer: D. A is false but R is true.
🔒 The full explanation is free to read after you sign up →
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Chapter lists follow the NCERT textbooks as available to us; textbooks are revised from time to time, so confirm on ncert.nic.in.
