Algorithm And Flowcharts


In the realm of Computer Studies, understanding algorithms and flowcharts is fundamental to developing problem-solving skills in the field of programming and computational thinking. An algorithm can be described as a step-by-step procedure or method for solving a problem. It acts as a set of instructions that guide a computer to perform specific tasks or calculations efficiently and effectively.

Algorithms serve essential functions in computing, such as carrying out calculations, processing data, and automated reasoning. They are crucial in enabling computers to perform complex operations with speed and accuracy. In essence, algorithms are the cornerstone of programming logic, shaping how tasks are executed within software applications.

When discussing algorithms, it is essential to explore their properties. These properties define the characteristics that make an algorithm effective and reliable. Some properties include definiteness, which ensures that each step in the algorithm is precise and unambiguous. Effectiveness guarantees that the algorithm can achieve its intended purpose successfully, while finiteness dictates that the algorithm must eventually halt after a finite number of steps.

Another crucial aspect to consider is the input and output specifications of an algorithm. Input specifies the data or information provided to the algorithm for processing, while output indicates the results or outcomes produced by the algorithm after computation. This clear distinction between input and output aids in understanding how data flows through the algorithm, influencing its behavior and functionality.

In addition to understanding algorithms, proficiency in constructing flowcharts is equally vital in programming. Flowcharts are visual representations of algorithms that use various symbols to illustrate the steps and logic of a program. These symbols include starting and ending points, input/output operations, process steps, decision points, loops, and more, all of which contribute to depicting the flow of control within a program.

Mastering flowchart symbols allows programmers to communicate their algorithmic logic effectively, facilitating the design and implementation of software solutions. By drawing flowcharts for programming problems, individuals can visualize the logical sequences and decision structures involved in solving a specific computational task. This visual representation enhances problem-solving skills by providing a clear roadmap for developing efficient and optimized algorithms.

Overall, the synergy between algorithms and flowcharts plays a pivotal role in honing problem-solving skills within the realm of Computer Studies. A deep understanding of algorithmic principles and the ability to translate them into visual representations through flowcharts empowers individuals to tackle complex computational challenges with precision and proficiency.


  1. Define Algorithm and Flowchart
  2. Identify Flowchart symbols: Start Input/Output, Process, Decision Stop, Loop, Continuation etc
  3. State Functions of Algorithms: They are used to perform Calculations, Data Processing, Automated reasoning etc
  4. State and explain the properties of Algorithm Input specified Output specified: Definiteness, Effectiveness, Finiteness etc
  5. Draw Flowchart of a given programming problem

Lesson Note

In the world of computer science, understanding how to solve problems systematically and logically is fundamental. Two essential tools aid in this process: Algorithms and Flowcharts. They provide a clear approach to solving problems and designing solutions that computers can execute.

Lesson Evaluation

Congratulations on completing the lesson on Algorithm And Flowcharts. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.

You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.

Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.

  1. Explain the definiteness property of an algorithm. A. It must have a clear set of instructions B. It must be able to handle any input C. It must produce the correct output D. It must be able to halt after a finite number of steps Answer: A. It must have a clear set of instructions
  2. What are the functions of algorithms? A. Data processing only B. Calculations and automated reasoning only C. Calculations and data processing only D. Calculations, data processing, automated reasoning, etc. Answer: D. Calculations, data processing, automated reasoning, etc.
  3. Which of the following is a flowchart symbol used to represent a decision in an algorithm? A. Start B. Input/Output C. Process D. Decision Answer: D. Decision
  4. State one characteristic of a High-Level Language (HLL). A. Machine-dependent B. Low-level control C. Platform-specific D. Easy to understand and program Answer: D. Easy to understand and program
  5. When drawing a flowchart, which symbol represents the process or computation to be performed? A. Start B. Input/Output C. Process D. Decision Answer: C. Process
  6. What property of an algorithm ensures that it must eventually halt after a finite number of steps? A. Definiteness B. Effectiveness C. Finiteness D. Legibility Answer: C. Finiteness
  7. Which flowchart symbol is used to indicate the start and end of an algorithm? A. Start B. Input/Output C. Decision D. Stop Answer: A. Start
  8. Identify a function of an algorithm. A. Data analysis B. Automated reasoning C. User interface design D. Graphics rendering Answer: B. Automated reasoning
  9. Explain the property of effectiveness in an algorithm. A. It must be able to handle any input B. It must produce the correct output C. It must have a clear set of instructions D. It must be executable using available resources Answer: D. It must be executable using available resources
  10. What does the loop symbol in a flowchart represent? A. Start of the algorithm B. Repetition of a set of instructions C. Decision-making point D. End of the algorithm Answer: B. Repetition of a set of instructions

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Past Questions

Wondering what past questions for this topic looks like? Here are a number of questions about Algorithm And Flowcharts from previous years

Question 1 Report


Convert 687 in decimal to base 16?  

Question 1 Report

The diagrammatic representation of an algorithm is

Question 1 Report

The following instructions are guidelines for drawing flowcharts except that?

Practice a number of Algorithm And Flowcharts past questions