Computer Science · Class 7
Programming Basics
Learn Programming Basics with notes, examples, and practice questions.
3 sections15–25 min read6 MCQs · 2 examples
Chapter Overview
Programming Basics develops Python programming skills — syntax, data types, control flow, functions, and problem-solving for Class 7 exams.
Python Syntax
- Indentation defines blocks (no braces)
- Variables are dynamically typed
- print(), input(), len(), type()
- Comments: # single line
Core Concepts
- Data types: int, float, str, list, dict
- if/elif/else, for and while loops
- Functions with def and return
- File handling with open()
Solved Examples
Step-by-step solutions — read each step before checking the final answer.
Trace output
What does print(2 + 3 * 4) output?
- 1Multiplication first: 3*4=12
- 22+12=14
- 3print shows 14
Answer
14
Write a loop
Print numbers 1 to 5 using for loop.
- 1for i in range(1, 6):
- 2 print(i)
- 3range(1,6) gives 1..5
Answer
for i in range(1,6): print(i)
Key Points to Remember
- ✓ Python is case-sensitive
- ✓ Lists are mutable; strings are immutable
- ✓ Use meaningful variable names
Exam Tips
- • Trace code step by step
- • Know indentation rules
- • Practice list and dict operations
Practice MCQs — Programming Basics
Test your understanding with topic-wise multiple choice questions. Explanations appear after each answer.
Question 1 of 6Score: 0/0
Python uses ___ for blocks: