Algorithm

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What is an Algorithm in Computers?

In computers, an algorithm is a step-by-step set of instructions that tells the computer how to solve a problem or perform a task.

A computer cannot think on its own, so it follows algorithms exactly as written.

Example (simple computer algorithm)

To add two numbers:

  1. Start
  2. Take first number
  3. Take second number
  4. Add the numbers
  5. Display the result
  6. Stop

What is the Use of an Algorithm?

Algorithms are used to control how computers work and solve problems efficiently.

Main uses of algorithms in computers:

  1. Problem solving – break complex problems into simple steps
  2. Writing programs – every computer program is based on algorithms
  3. Speed & efficiency – good algorithms make programs run faster
  4. Accuracy – reduce errors by following fixed steps
  5. Decision making – help computers choose actions (e.g., if–else logic)

Where algorithms are used:

  • Search engines (finding information on Google)
  • Games (player movement, scoring)
  • Mobile apps (login, recommendations)
  • Banking systems (ATM, online payments)
  • Artificial Intelligence (image & voice recognition)

In one sentence:

๐Ÿ‘‰ An algorithm is a step-by-step method used by computers to solve problems and perform tasks efficiently.


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