If you just arrived on the world wide web....you are not alone. In the next year an estimated 10 million people will come online. You are viewing this with a browser (of some sort). You navigate by clicking on a link. (underlined or different color).
This page (and most others) exist on servers. You download the code for the page (and pictures, sounds, movies, and more) onto your computer through a network of routers and other computers.
For some excellent online help visit creativegood.com.
And check out this site for more help and understanding.