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Functions

CBSE · Class 11 · Computer Science

Quick revision notes for Functions — CBSE Class 11 Computer Science. Key concepts, formulas, and definitions for last-minute revision.

42 questions80 flashcards5 concepts

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Key Topics to Revise

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1. Core Ideas of Functions

  • Functions are used to achieve modularity and reusability.
  • The process of dividing a program into separate independent blocks of code or sub-problems with different names and specific functionalities is called modular programming.
  • A function definition begins with def.
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2. User Defined Functions, Arguments, and Parameters

  • User defined functions are created by the programmer for a specific task.
  • An argument is a value passed to the function during the function call.
  • A parameter is the name in the function header that receives the argument.
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3. Return Values and Multiple Values

  • A function may return value(s) using the return statement.
  • The return statement sends control back to the calling function.
  • Some functions only display output and do not return anything; such functions are void functions.
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4. Flow of Execution and Function Call Order

  • Flow of execution is the order in which statements in a program are executed.
  • The Python interpreter starts from the first statement and moves top to bottom.
  • Function definitions are not executed until the function is called.

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Full Notes

Key Concepts

A function is a named groupModular programming means dividing a computerA function definition begins with defAn argument is a value passedPython allows assigning a default value

Frequently Asked Questions

What are the important topics in Functions for CBSE Class 11 Computer Science?
Functions covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Functions — CBSE Class 11 Computer Science?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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