KVM switches are used to control multtiple computers with a single set of keyboard and mouse, with a signle output for a monitor. KVM switches can be used with computers, servers, network equipment as well as surveillance equipment like DVRs and NVRs.
IP KVM Switches
IP KVM switches are similar to their traditional cousins, but allow keyboard and mouse control remotely over an IP network. They may also allow remote monitor display from a central location over an IP network.