Every single desktop or notebook or server is run by an Operating System - the low-level software that communicates with the hardware, including peripheral devices such as a mouse or a printer, together with any apps that are installed on the system. Any program input using a command line or a Graphical User Interface (GUI) is processed by sending an Application Program Interface (API) request to the OS. On a server, every single app runs within the parameters specified by the OS as well - priority, physical memory, processing time, and so on. This is valid for both standard Internet site scripts and server-side software such as a media server. In case a virtual server is created on a physical one, there can be two different Operating Systems, called guest OS and host OS, so that you'll be able to set up a different software environment on the very same machine.
Multiple OS in Dedicated Web Hosting
In case you decide to purchase one of our dedicated servers, you will find three Operating Systems on the registration page since we want to give you a broader choice for the system environment on your server as different applications may have certain requirements. CentOS, Ubuntu and Debian feature different modules developed by their vast support communities, so you can select each of these OSs and enjoy a stable and secure Internet hosting service. Based on your choice, you will also have different Control Panels to choose from. Of course, we can always change the Operating System if the one you have selected at first doesn't meet the requirements of the software which you'd like to run. We can also update your OS routinely in order to keep it as risk-free as possible with our Managed Services upgrade package.