Software refers to a program or set of instructions that instructs a computer to perform some task.Software can be divided into two major categories called system software and application software.Systems software includes operating systems and various device drivers. Application software are used to perform real-world tasks and solve specific problems.
A program is simply a set of instructions that tells a computer how to perform a particular task.Programs are developed using programming languages. Computer programming is the art of developing computer programs. Programming is rather like a recipe; a set of instructions that tells a cook how to make a particular dish. It describes the ingredients (the data) and the sequence of steps (the process) on how to mix those ingredients.
A programming language provides a set of rules to develop a program. A person who writes a program using a programming language is called a programmer. His/her job is to convert a solution to a problem (i.e. algorithm) into set of instructions understood by a computer. The programmer should also test the program to see whether it is working properly and corrective actions should be taken if not.
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