What is the name of a host computer that uses a hypervisor to manage multiple guest operating systems or VMs?

The correct term to describe a host computer that uses a hypervisor to manage multiple guest operating systems or virtual machines (VMs) is "Host Server." A host server is the physical machine that runs the hypervisor, which is a type of virtualization software that allows the creation and management of multiple virtual environments. Each of these environments can function independently, as if each had its own hardware, while in reality, they are sharing the resources of the host server.

Virtualization refers to the technology that allows multiple virtual instances to run on a single physical server but does not specifically identify the host machine itself. A hypervisor manager is not a standard term used in virtualization; instead, it may refer to the management interface or software that interacts with the hypervisor but does not describe the host system itself. A virtual machine, on the other hand, represents the guest operating systems that run on the hypervisor, not the host that manages them. This distinction clarifies the role of each component in the virtualization ecosystem.