What is hosting?

A web hosting service is a type of Internet hosting service that allows individuals and organizations to provide their own websites accessible via the World Wide Web. Web hosts are companies that provide space on a server they own for use by their clients as well as providing Internet connectivity, typically in a data center. Web hosts can also provide data center space and connectivity to the Internet for servers they do not own to be located in their data center, called colocation.

Wikipedia

There are different types of hostings with the most common being web hosting. This type of hosting enables clients to design sites and upload the site to their hosting space. The amount of space one has depends on the hosting package they have chosen. This varies from a 30mb free account to Unlimited space with the Unlimited package.