An Operating System is the software which interacts with the hardware of a computer and works as the intermediary between the installed applications and the hardware, which includes peripherals such as a printer, a mouse or a keyboard. When you run software, it transfers 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). Similar to a personal computer, web hosting servers also have an Operating System which functions as a host for any 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 generated on a physical one, so you'll be able to install a guest OS on it and have a different system environment in contrast to the physical server host Operating System.
Multiple OS in Dedicated Servers
In case you decide to acquire one of our dedicated servers, you will find three Operating Systems on the order page since we want to give you a larger choice with regard to the system environment on your machine as different applications can have specific requirements. CentOS, Ubuntu and Debian come with different modules developed by their huge support communities, so you can select each of these OSs and enjoy a stable and risk-free Internet hosting service. Based on your choice, you will also have different Control Panels to choose from. Needless to say, we can always replace the Operating System if the one you've selected at first does not meet the requirements of the software that you'd like to run. We can also upgrade the OS routinely to keep it as secure as possible using our Managed Services upgrade package.