Kernel-based Virtual Machine (KVM) is a virtualization infrastructure for the Linux kernel that turns it into a hypervisor. It was merged into the Linux kernel mainline in kernel version 2.6.20.
License: Open Source
KVM is a powerful and flexible virtualization solution that integrates closely with the Linux kernel, making it ideal for server environments and high-performance applications. In contrast, Virtual PC is a simpler, Windows-based virtualization tool better suited for users looking to run legacy applications or basic virtual machines.