computers are lifeline of this rapid growing world. In the developing world, it is very difficult to imagine life without computers. It has brought revolution in our lives. With computers, life becomes easy and actually rocking as well. So, it is essential to learn the correct usage of computer machine and the Internet effectively. As more and more people are logging everyday, the requirement for learning computer in a proper way and the most applicable method to navigate has become a steady concern. There has been a swift growth in the number of users as well as the web world is increasing regularly to provide you a lot.