A LinuxMCE setup consists of two parts – one Core and one or more Media Directors. The Core is the central server and provides services throughout the home. It acts as the central media storage and catalog, it routes home automation messages and commands, and it provides net boot images for the Media Directors. Each Media Director is connected to a screen (TV, computer screen or projector) and optionally to other A/V equipment. All media are presented through a Media Director. If the Core is also a Media Director (connected to a TV), it is called a hybrid system. Media Directors can be booted over the network from the Core. That way, only the Core needs to be updated and backed up to keep the whole system up-to-date.