Computer is an electronic device that can read and write, compute and compare and can store large amount of data and information. It is a device with large artificial memory and is presently being used in variety of fields around the globe. It has brought revolutions in industries across the world by minimizing effort and maximizing productivity. The major contribution of computer is in managing information about business and all its processes. That is why it lead to birth of a new field known as Information Technology (IT). No matter small or big, tiny or enterprise, production or trading all kinds of business are today dependent on IT and are using computer to fullest to cater their day to day needs. So we can conclude that in the near future we cannot imagine a business process running without computer.