Introduction
Computer nowadays is important to all of us specially in our daily lives. We all know that computer is an electronic device used in almost every field even where it is most unexpected. That is why this age is called as the era of IT. And now we cannot imagine a world without computers. It is made up of two things one is the hardware and other is software. All physical components of computer like keyboard, mouse, monitor etc., come under the hardware whereas all the programs and languages used by the computer are called software. These days’ computers are the tools for not only engineers and scientists but also they are being used by millions of people around the world. Computer has become very important nowadays because it is very much accurate, fast and can accomplish many tasks easily. Otherwise to complete those tasks manually much more time is required. It can do very big calculations in just a fraction of a second. Moreover it can store huge amount of data in it. We also get information on different aspects using internet on our computer. Computers in different field are also important just like in BANKS where almost every bank is using computers to keep the record of all the money transaction and other calculations. Moreover it provides speed, convenience and security. COMMUNICATION where it is another important aspect of computer and has become very easy through internet and email. Computer communicates using telephone lines and modems. Through email we can send messages to anybody in any part of the world in just a second while if we write letter then it will reach in some days. Internet helps to find information on every topic. It is the easiest and fastest way of research. Computer network makes the user capable of accessing remote programs and databases of same or different organizations. EDUCATION because we are using computers in every