KVM stands for keyboard, video, mouse, and whoever has access to it can remotely control a computer. Using the clever PiKVM software and a Raspberry Pi 4, you can inexpensively control a PC and other devices via the Internet without having to install software on the remotely controlled computer. PiKVM also enables the provision of virtual disks, so that a computer can not only be controlled and maintained remotely, but a complete reinstallation is possible.