An algorithm is the step-by-step method used to solve a problem or perform a task on a computer. Before a computer starts working, it needs clear instructions. These instructions are called an algorithm.
In simple words, an algorithm is like a recipe. Just as we follow steps to cook food, a computer follows steps to complete a task.
What is an Algorithm?
An algorithm is a logical sequence of steps written in simple language to solve a problem.
For example:
Steps to add two numbers
Steps to print a document
Steps to open a computer
All these actions follow an algorithm.
Why is Algorithm Important in Computer?
Algorithms help us:
Solve problems in a clear way
Understand how a program works
Reduce errors
Make computer programs easy to write
Without an algorithm, programming becomes confusing and difficult.
Characteristics of a Good Algorithm
A good algorithm should have:
Clear steps – Easy to understand
Correct output – Gives accurate result
Finite steps – Must end after some steps
Input and output – Takes input and gives output
Basic Algorithm of Computer (IPO Cycle)
The working of a computer follows a simple algorithm called the IPO cycle:
Input – Data is entered using input devices
Process – Data is processed by CPU
Output – Result is shown on output devices
This cycle is used in every computer operation.
Example Algorithm: Add Two Numbers
Step 1: Start
Step 2: Input two numbers A and B
Step 3: Add A and B
Step 4: Display the result
Step 5: Stop
Algorithm vs Program
Algorithm
Step-by-step solution
Written in simple language
Easy to understand
Program
Actual code
Written in programming language
Needs computer knowledge
Advantages of Algorithm
Easy problem solving
Better understanding of logic
Saves time in programming
Helps in learning coding easily