- You can run multiple computers from a single console with a KVM switch. KVM stands for keyboard-mouse-video. You plug one monitor, mouse and keyboard into a KVM switch. The KVM switch connects to the keyboard, mouse and video ports of each computer you wish to use with an additional set of cables.
- KVM switches may be passive hardware devices or more complex electronic units. A passive KVM switch changes your keyboard, mouse and video to interact with each different computer by way of a hardware switch or knob. An electronic KVM switch allows more computers to connect with a single console, and you usually shift control from one computer to another with an electronic switch--either a button on the KVM switch or a keyboard command that allows you to select the computer you want from a menu.
- KVM switches manage two or more computers. Small switches may be practical as a space-saving measure: For example, a computer technician alternately working on her office computer and a computer she's repairing could do both at her desk without fitting two monitors on it. Network administrators frequently use large switches in business environments to run multiple servers from the same console.
- Remote access tools can replace a KVM switch for certain purposes. A remote access tool allows you to access a remote computer as a window on the computer you're actually working at. Some remote access tools have built-in limitations, such as an inability to shut a computer down or the fact that certain icons in the Windows Notification Area may not show. A remote access tool usually will not allow you to control a computer that hasn't booted to its operating system. For this functionality (including BIOS interactions and booting to special modes), a KVM switch is still the way to go.
