An Operating System is the software which communicates with the hardware of a PC and serves as the intermediary between applications and the hardware, which includes peripheral devices such as a printer, a computer mouse or a keyboard. When you run an application, it transmits requests to the OS using an API (Application Program Interface) and the contact is done through a command line or a Graphical User Interface (GUI). Just like a personal computer, web hosting servers also use an Operating System which functions as a host for all the software installed on them, including script apps or server-side software such as a flash server, a VOIP server, and so on. A virtual machine can be created on a physical one, so you can install a guest OS on it and have a different system environment compared to the physical server host Operating System.
Multiple OS in Dedicated Hosting
If you decide to get one of our dedicated servers, you will find three Operating Systems on the registration page because we want to give you a larger choice regarding the system environment on the server as different applications may have particular requirements. CentOS, Ubuntu and Debian come with different modules developed by their vast support communities, so you can select any of these OSs and benefit from a reliable and risk-free Internet hosting service. Depending on your decision, you will also have different Control Panels to choose from. Of course, we can always change the Operating System in case the one you've selected in the beginning does not meet the requirements of the software which you would like to run. We can also upgrade your OS on a regular basis in order to keep it as secure as possible through our Managed Services upgrade package.