Well let me start this way, what is web hosting?

Web hosting is the ability to move a business or information, product content, research to Internet. Actually, web hosting service is an Internet hosting service that permits an individual or an organization to provide their websites accessible via World Wide Web. Web hosts are those firms or organizations that provide space on a server they own for use by their clients as well as providing Internet connectivity, typically in a data center. These also furnish data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation or a service that allows you to put your website (domain name) on the internet. After you have thought of a name for your website and registered the domain name, the next step is to find a web hosting service from a web hosting provider.