Dedicated Server, or managed hosting service is a type of Internet hosting in which the client leases an entire server not shared with anyone else. This is more flexible than shared hosting, as organizations have full control over the server(s), including choice of operating system, hardware, etc.
Dedicated hosting also frees you from the concerns of bandwidth and disk space allotments imposed by most shared hosting plans. Remember, disk space determines how much information your site can offer, or put another way, how "big" your website can be, while bandwidth determines how much access visitors have to your site, or put another way, the size of the roads bringing traffic to and from your site.
When you own your own server, you don't have to worry about sharing any of that with anyone. That's because a dedicated server comes with its own dedicated IP address, which means its own dedicated connection to the Internet.
Using a dedicated hosting service offers the benefits of high performance, security, email stability, and control. Due to the relatively high price of dedicated hosting, it is mostly used by websites that receive a large volume of traffic