What Host is
A computer that functions as the beginning and end point of data transfers. It is most commonly thought of as the place where your Web site resides. An Internet host has a unique Internet address (IP address) and a unique domain name or host name. A host can also refer to a Web hosting company.
The meaning of Hosting
In a general sense, "hosting" refers to "Web site hosting" which is the business of providing the equipment and services required to display Web sites. The business of hosting also involves maintaining files and providing fast Internet connections. If you run a Web site or do business on the Web, you have a host and you know the importance of having a good, reliable host. Hosting is very affordable nowadays; the most important factor continues to be good customer service, make sure they have it!