KVM, which stands for Kernel-based Virtual Machine, is a powerful tool integrated into the Linux operating system. It acts as a virtualization module, enabling the Linux kernel to perform the role of a hypervisor. This means that KVM allows the Linux kernel to manage and run multiple virtual machines on a single physical machine.

Each virtual machine can operate as if it were a separate computer, complete with its own operating system and applications. By using KVM, users can efficiently utilize hardware resources, run different operating systems simultaneously, and easily manage virtual environments.

This capability makes KVM a popular choice for businesses and developers who need flexible and scalable virtualization solutions.