The computer has become a vital part of everyone’s life in the 20^th century. Important information is stored in the computer. We live each day in fear of the computer breaking down. If that happens, it will be the end of the world for most of us. All information will be lost. We will have to start all over again from scratch to build up our database.

            In the last decade, the Net and the Web have greatly integrated into our lives. We search the Web for all the information we need. We get all the information needed without physically leaving the house to visit libraries or bookshops. The information is at fingertips away.  Electronic-commerce (e-commerce) has gained vast popularity in the business sphere in the past two years. Dot.com companies have started to sprout out everywhere. Big organizations such as Citibank, Microsoft, IBM, Apple etc., already have their e-commerce sites up in the Web. People could buy commodities from such websites without setting foot into the stores. To put it in simple words, the Net and the Web environment have provided a lot of conveniences for people in their daily lives. We are getting more and more reliant and dependent on the convergence of the physical world and the virtual world.