Each desktop or notebook or server is run by an Operating System - the low-level software that interacts with the hardware equipment, including peripherals such as a mouse and a printer, as well as any applications that are present on your 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, each and every app runs within the parameters defined by the OS as well - priority, physical memory, processing time, and so on. This is valid for both standard site scripts and server-side software such as a media server. In case a virtual server is generated on a physical one, there can be two separate Operating Systems, referred to as guest OS and host OS, which means that you can set up a different software environment on a single machine.
Multiple OS in VPS Web Hosting
If you decide to acquire one of our virtual private server packages, you shall be able to pick one of the three Linux releases that we offer for the OS of the servers - CentOS, Ubuntu and Debian. They're among the most preferred and most reliable server OSs on the market and we offer them so that you have a choice for the software environment of your machine if you intend to install some application with specific requirements regarding the packages that need to be present on the web hosting server. We also offer three hosting Control Panels and which one of them you'll be able to use will depend on the OS that you have chosen. We leave the option 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. In addition, we can keep the OS up-to-date weekly by installing all of the security updates which may be available.