The Computer is remarkable invention of the modern age of science. It has broadened the mental horizon of man and revolutionized all the field of life. The impossible tasks have become possible due to the very efficiency and perfection of computer technology. The world has become a global village and information has spread all over the world through internet. A computer is an electronic device capable of performing a series of arithmetic or logical operations according to instructions. The computer has made the working very easy and effective in all the walks of life.