Dedicated server on steam is a server that gives you control and root access to your server machine. This is basically for users who want to setup a game server using steam cmd. It is a command-line version used to deploy and update the different dedicated servers that run PC games available on Steam.

Some of the advantages are: Improved performance over shared VPS Dedicated operating system Improved security Can install custom and specialised software Full control over your own server environment 

Within the Web hosting industry, a Data Center is a facility used to store and manage Web sites and other Internet information and hardware infrastructure. These Data Centers contain computer servers connected to the Internet 24 hours a day, 7 days a week. Redundancy is a common theme found within high quality data centers and also can be implement