--- tags: [motherboard] --- # Chipset and controllers A **controller** is simply a circuit that controls a process. The **chipset** is a combination of controllers placed on the same piece of silicon. The chipset manages the data flow between the different components that comprise the [motherboard](Motherboard.md): processor, [memory](Memory.md), [harddisk](What_are_disks.md) and peripherals. Buses run in and out of the chipset into these key motherboard components. The main chipset is a kind of junction that sits between the memory and CPU through which the [system bus](Bus.md) passes. The chipset is sometimes called the "glue" or "traffic controller" of the motherboard or _an intelligent intersection of buses_.