Materia.- Ingles
It works as main circuit, coordinates the motherboard, the center plate and the motherboard.is fitted with a Bios houses connectors processor, Ram, Bios, series doors, doors parallel,expansion of memory, display, keyboard, hard drive and plugs.Once equipped with all these elements is called "Chipset" or set of processors .This allows you to integrate all components of the computer and is a composite of several connectors circuit.

