This completly brainless thing goes by at least 3 names: screen, monitor or display.
I don't mean to be insulting, but it really does nothing except display what the graphics card tells it too. It doesn't talk or listen directly to the CPU at all. It's like a TV without the ability to change channels or tune into stations. Those thin, schick modern displays are known as LCD monitors while the older and cheaper kind are called CRT monitors.