Hosting Types
Hosting providing is often divided into paid and free. Typically, a company that provides free hosting, make money by displaying advertisements on the pages hosted on it. Free hosting is usually slower, provided only basic services and sometimes unreliable. Individuals for their homepages at the initial stage of their development using free hosting. Public organizations can use as a paid hosting, and free. Commercial organizations almost always use the services of a paid hosting.
You can also share the hosting services provided by type of resource:
* Virtual server – available disk space for hosting Web sites, including execution of Web services common to many users, resources are shared among all users on one server, which can accommodate from 50 to 1000 users. Small cheap hosting providers often neglect safety and did not distinguish between user privileges, which allows one user on the server to have access to the sites of hundreds of other users. In larger and more expensive providers, this problem is usually solved.
* Virtual Dedicated Server (VPS or VDS) – available disk space, part of the shared memory. Looks for the user as well as a dedicated server, but physically on the same real server is located several virtual servers. The service is intended for projects of medium gravity. Due to the fact that a clear division of all server resources are not possible (such as I / O operations, resources, network card, etc.), and many VPS providers selling more resources than is on the server, hoping that the client uses its allocated potential is not fully, frequently asserted power VPS server does not match reality.
* Dedicated server – provided the server entirely. Used to implement non-standard tasks (services), as well as placing “heavy” web-projects, which can not coexist on the same server with other projects and require all resources under a server.
* Colocation center – providing a place in the data center provider for customer equipment (usually by mounting in a rack) and connect it to the Internet.

Tnx, useful info)