A hypervisor is a program or device that creates and runs virtual machines. The hypervisor makes it possible to run an operating system on each VM. It divides resources between VMs, allows them to turn on and off independently, and isolates them from each other.
Hypervisors come in software and hardware versions. Hardware hypervisors are considered more productive than software hypervisors.
There are also hybrid hypervisors. The difference between the types of hypervisors is not always clear
Hypervisors are distributed under free and commercial licenses. Oracle VM Server is a paid solution.
Control Panels.
Dashboards make hypervisors easy to use
The Virtualization Control Panel is a service where you can work with the hypervisor through a graphical interface. It helps you create virtual machines with the configurations you want, install software on them, configure them, and make backups.
Virtualization panels differ in what kind of hypervisor they work with.
KVM is included in the Linux kernel, so you can manage it without any panel at all – in the console. However, this requires knowledge of the basics of administration and is time-consuming even for experienced admins.