Every notebook or desktop or server is run by an Operating System - the low-level program that interacts with the hardware, including peripheral devices such as a mouse or a printer, and any applications that are installed on your 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, each application runs within the parameters established by the OS as well - priority, physical memory, processing time, etcetera. This is valid for both standard Internet site scripts and server-side software such as a media server. If a virtual server is created on a physical one, there can be two independent Operating Systems, referred to as guest OS and host OS, so you will be able to set up a different software environment on the same machine.

Multiple OS in Dedicated Servers

If you decide to purchase one of our dedicated servers, you will find three Operating Systems on the registration page because we want to give you a wider choice regarding the system environment on your server as different applications may have specific requirements. CentOS, Ubuntu and Debian include different modules developed by their huge support communities, so you can select any of these OSs and benefit from a stable and risk-free web 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 in case the one you have selected initially doesn't meet the requirements of the software which you'd like to run. We can also upgrade the OS on a regular basis to keep it as secure as possible using our Managed Services upgrade package.