Host virtual machine definition
A host virtual machine is the hardware supplying computing resources for a guest virtual machine (VM), managed by programs called hypervisors. A host VM may exist as part of one physical machine or use the combined resources of several.
Real host virtual machine examples
VMware ESXi/vSphere is one of the leading hypervisors on the market, with both free and commercial versions available.
Virtual Box is a free virtual machine app for high-performance virtualization on the host device.