Xen

Xen is a virtualization platform that allows a single physical computer to run multiple virtual computers, called virtual machines (VMs), simultaneously. It acts as a management layer that isolates each VM, enabling them to operate independently while sharing the underlying hardware resources like CPU, memory, and storage. This helps optimize hardware usage, enhance flexibility, and improve security by separating different workloads. Often used in data centers and cloud environments, Xen ensures efficient, scalable, and secure operation of multiple virtual servers on a single physical machine.