Differentiate between Algorithm and Program

1. Algorithm

Definition

An algorithm is a step-by-step procedure that defines how to solve a problem. It works like a planning phase where the logic is written in simple language.

Advantages of Algorithm

  1. Easy to understand – Can be written in simple natural language.

  2. Clear logic – Helps in planning before writing the actual program.

  3. Easy to detect errors – Mistakes can be identified in the steps.

  4. Language-independent – Not linked to any programming language.

Disadvantages of Algorithm

  1. Time-consuming – Algorithm must be written before programming.

  2. Becomes lengthy for large problems – Difficult to manage.

  3. Cannot be executed directly – Only provides planning, not execution.

2. Program

Definition

A program is a set of instructions written in a programming language (C, Java, Python, etc.) that a computer can execute to produce output.

Advantages of Program

  1. Executable by computer – Produces output quickly.

  2. Fast and accurate – Eliminates manual calculation errors.

  3. Reusable – Can be used multiple times once created.

  4. Can solve complex problems – Useful for data handling, calculations, etc.

Disadvantages of Program

  1. Requires syntax rules – Wrong syntax results in errors.

  2. Difficult for beginners – Requires learning a programming language.

  3. Debugging may take time – Finding mistakes can be hard.

  4. Requires software/hardware – IDE, compiler, and system needed.

3. DIFFERENCE Between Algorithm and Program (Comparison Table)

Algorithm Program
A step-by-step procedure to solve a problem. A set of instructions written in a programming language.
Language-independent. Language-dependent (C, C++, Java, etc.).
Defines the logic only. Executes the logic.
Cannot be executed by computer directly. Can be executed directly by the computer.
No syntax rules required. Strict syntax rules must be followed.
Easy to write and improves logical thinking. Difficult to write; requires language knowledge.
Errors can be detected easily. Error finding and fixing may be difficult.
Used in the planning stage. Used in the execution stage.

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