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Chapter 4 of 11
Revision Notes

Introduction to Problem Solving

CBSE · Class 11 · Computer Science

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

45 questions92 flashcards5 concepts

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Key Topics to Revise

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1. Problem Solving Basics

  • Problem solving is the process of identifying a problem, developing an algorithm for it, and finally implementing the algorithm to develop a computer program.
  • Computers can do tasks faster and more accurately, but they need precise step-by-step instructions.
  • The correctness of output depends on the correctness of input. This is the GIGO concept.
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2. Algorithm

  • An algorithm is a finite sequence of exact steps that solves a problem or performs a task.
  • An algorithm has a definite beginning, a definite end, and a finite number of steps.
  • The purpose of using an algorithm is to increase reliability, accuracy, and efficiency of obtaining solutions.
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3. Representation of Algorithms

  • There are two common methods of representing an algorithm: flowchart and pseudocode.
  • Both methods show the logic of the solution and exclude implementational details.
  • Flowcharts use standard symbols connected by arrows.
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4. Flowchart Symbols and Basic Examples

  • Standard flowchart symbols include Start/End, Process, Decision, Input/Output, and Arrow.
  • Start/End is also called the Terminator symbol.
  • Process represents a single action or step.

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Full Notes

Key Concepts

Problem solving is the processAn algorithm is a setA flowchart is a visual representationPseudocode is a nonFlow of control describes how statements

Frequently Asked Questions

What are the important topics in Introduction to Problem Solving for CBSE Class 11 Computer Science?
Introduction to Problem Solving 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 Introduction to Problem Solving — CBSE Class 11 Computer Science?
Understand the core concepts first, then work through the 45 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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