Computer:- In the simplest definition , a computer is a an lelctronic device - a flexible machine that can manipulate data . Computer is being used for tasks ad adding up the super market bill , poets, graphics illustrators and scholars of medievel history . A computer is a programmable i.e the computer depends totally on the program which the computer is using (a program is a list of instructions , telling the computer what to do) a computer hardware ( the machine and it's components is designed to be as flexible as possible. By using computer program , called sofware , one transfroms this flexible hardware into a tool for a specific purpose . No matter which program a computer is using , the machine it's self prefroms only for basic operation , as shown in 1.1.1. The most widely accepted definition of the computer include the following operation:
