An Operating System is the software that communicates with the hardware of a PC and works as the intermediary between the installed applications and the hardware, including peripherals such as a printer, a mouse or a keyboard. When you run an application, it transfers requests to the OS using an API (Application Program Interface) and the communication is done through a command line or a Graphical User Interface (GUI). A lot like a personal computer, web servers also use an Operating System that serves as a host for all of the software installed on them, which includes script applications 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 could install a guest OS on it and have a different system environment compared to the physical server host OS.
Multiple OS in VPS Servers
If you choose one of our VPS server plans, you will have 3 different Operating Systems to select from - CentOS, Debian and Ubuntu. They are all Linux distributions and we offer them instead of offering just a single OS, as the applications that you may wish to run on the server may have specific requirements for the software environment. Each one of these three has some advantages regarding the available packages that you could eventually install, but what is common between them is that they are very stable and reliable and have vast communities that support them. The web hosting Control Panel choices for the VPS accounts depend on your OS choice, so as to provide you with more flexibility. In case you order the virtual server with one OS and you need another one later, our technical support team can easily reinstall the VPS with the new one in a couple of minutes. We also offer you the option to keep the Operating System on your server up-to-date weekly.