By using virtualization technology to partition and split the main server into multiple virtual servers, a virtual private server operates as an independent or stand-alone server with the same functionality as a dedicated server. VPS hosting is considered a more advanced version of the shared web hosting service in that your website will only use the specified VPS resources such as Storage, CPU, RAM, & Bandwidth if you host your website or application on that VPS.
Unmanaged VPS hosting is all about managing your server on your own. You are responsible for the installation of all the software you need and for maintaining the server, everything will fall to you. As the business owner, you may not be able to simultaneously handle all the server-related tasks and your business at a same time even if your are technical enough. So in this situation, You can opt our semi-managed vps or managed VPS plans.