Basicly algorithm refers any procedure that is executed step wise step suppose u have to make a tea then you have to follow a procedure like first add water then sugar Not u will mix all things together at first this is basically what a algorithm is
Step by step method to solve a problem

n the most general sense, an algorithm is a series of instructions telling a computer how to transform a set of facts about the world into useful information. The facts are data, and the useful information is knowledge for people, instructions for machines or input for yet another algorithm.

Algorithm is\xa0a set of rules to be followed in calculations or other problem-solving operations, especially by a computer.