If you get a hosting machine of your own, it will operate independently, so it will have its own Operating System and you can later install server side applications directly or script-driven internet sites through a hosting Cp. Although keeping the Operating System updated is not always considered fundamental, it can be a very important task for a variety of reasons. A more modern OS version may have better support for specific hardware, so you may get better performance for the websites and web apps that you install. Your server will also be more protected since updates often include security patches which fix small issues that may allow unauthorized individuals to access your content. Last, but not least, more recent script versions, which are also released for both improved security and for additional features, might require a later version of the Os in order to work effectively and with their 100 % capabilities.