To have a Web site on the Internet you first need to have a
Web server. Unfortunately, owning a Web server can be very
costly and requires technical expertise that most businesses
don't have. This is where a Web Host come in. Web hosting
companies provide the equipment and other technical
resources that you need without the headaches that come when
you have to do it yourself.

Think of a Web Host as the landlord of a building. A
landlord rents out storefronts to various businesses. Each
business decorates and runs their store differently, and
doesn't worry about the maintenence of the building. In a
similar way a Web Host rents out space on a Web server, (or
entire Web servers), to various businesses. Each business
builds their own Web site and never has to worry about the
maintenence of their Web server.