The World Wide Web is a collection of single, mostly more than one electronic document, linked together like a spider web.

Computers are storing and therefore servicing these documents. They are called servers located around the world.

On the simplest level, the Web physically consists of your personal computer, web browser software, a connection to an Internet service provider (ISP), computers called servers that host digital data, and routers and switches to direct the flow of information (grey in our graphic). You can call them connection points. May be the picture becomes clearer, if you realize a flow of information needs power or energy. On the "grey" connection points the data flow gets a boost, like electricity being transported from the power station (the data file you want to see in the internet) to your home. In fact a file needs energy like a car to come to your computer. This picture may help to understand what is going on.Here's how it works.