A program is a set of instructions, which when executed, makes the computer work in a particular manner . programs are an integral part of a computer . computer will be useless if it has no program . computer program directs a computer how to process and execute data.
A program is always well defined .If consists of:
A program is written in some specific language called a programming language. since computer does not understand natural languages, only specific languages are developed . computer understands programs written in these languages as these can be easily translated into a machine level language, which a computer understands using compilers , interpreters and assemblers.