Each and every desktop or notebook or server is run by an Operating System - the low-level software which communicates with the hardware equipment, including peripheral devices such as a mouse and a printer, along with any apps that are present on the system. Any program input through 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 application runs within the parameters set by the OS as well - priority, physical memory, processing time, etc. This goes for both standard site scripts and server-side software like a media server. If a virtual server is set up on a physical one, there can be two separate Operating Systems, named guest OS and host OS, which means that you will be able to set up a different software environment on a single machine.
Multiple OS in VPS Web Hosting
In case you decide to buy one of our virtual private server
plans, you shall be able to choose one of the three Linux distributions which we supply for the Operating System of the servers - CentOS, Ubuntu and Debian. They are among the most widespread and most stable server OSs available on the market and we offer them in order to give you a choice for the software environment of your machine in case that you intend to install some app with precise requirements regarding the packages that need to be present on the server. We also offer three internet hosting Control Panels and which one of them you could use will depend on the OS that you've picked. We leave the chance to change the server Operating System open, so when you want to use an app that requires an OS different from the one that's already present, we can always reinstall the VPS. We can also keep the OS up-to-date on a weekly basis by installing all of the security updates that may be released.