By hosting data on a physical server, you get all its power to run applications hosted on it, because the physical server is real hardware whose power belongs to you. It does not matter if it is your property or you rent it from a data center, processor power, RAM and hard drives are used to run the software you have installed. A virtual web server is created on the basis of a physical server, which means that its capacity is divided into virtual servers. VPS also owns the necessary attributes of a physical server - CPU, RAM and hard drives, which in the virtualization environment are divided between the VPS.