X terminals are a breed of low-cost display devices for X. They are usually diskless systems that implement an X server and drive a monitor. Such devices can be configured to access a remote host to find an xdm daemon or will broadcast to the entire network looking for a “willing host” to offer xdm services. The selected system will run an X session across the network with the X terminal as the target display. With this setup, a large number of relatively inexpensive X terminals can make use of a few high-powered host systems to run graphical clients.