An Operating System is the software that communicates with the hardware of a computer system and works as the intermediary between applications and the hardware, including 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 communication is done via a command line or a Graphical User Interface (GUI). A lot like a personal computer, hosting servers also have an Operating System that functions as a host for all of the software installed on them, which includes script apps or server-side software such as a flash server, a VOIP server, and many others. A virtual machine can be set up on a physical one, so you can install a guest OS on it and have a different system environment in contrast with the physical server host OS.
Multiple OS in Dedicated Servers
In case you decide to obtain one of our dedicated servers, you'll find three Operating Systems on the registration page as we want to give you a larger choice with regard to the system environment on the machine as different apps may have certain requirements. CentOS, Ubuntu and Debian include different modules developed by their huge support communities, so you can select each of these OSs and enjoy a reliable and secure hosting service. Depending on your choice, you'll also have different Control Panels to choose from. Needless to say, we can always change the Operating System if the one you've selected initially does not meet the requirements of the software that you'd like to run. We can also update the OS routinely in order to keep it as secure as possible through our Managed Services upgrade package.