The hypervisor is the core of virtualization. It is installed on a physical server and lets an administrator create, start and stop virtual machines, allocate resources and take snapshots.
Well-known hypervisors include VMware ESXi, Microsoft Hyper-V and Proxmox VE. The right one depends on your infrastructure, licensing and your team’s experience.
Example
An administrator creates a new virtual test server in a few minutes from the hypervisor’s web console.