What are hypervisors?
A hypervisor is a software that enables multiple [virtual machines (VMs)](https://www.ibm.com/think/topics/virtual-machines)—each with its own operating system (OS)—to run on one physical server. The hypervisor pools and allocates physical computing resources as needed by the VM, enabling efficiency, flexibility and scalability
A hypervisor is a software that enables multiple [virtual machines (VMs)](https://www.ibm.com/think/topics/virtual-machines)—each with its own operating system (OS)—to run on one physical server. The hypervisor pools and allocates physical computing resources as needed by the VM, enabling efficiency, flexibility and scalability