The main circuit board of a microcomputer is mother board. The motherboard contains the connectors for attaching additional boards. Typically, the motherboard contains the Central processing Unit, Basic input and output system, memory, mass storage interfaces, serial and parallel ports, expansion slots, and all the controllers required to control standard peripheral devices, such as the display screen, keyboard, and disk drive. Collectively, all these chips that reside on the motherboard are know as the motherboard’s chip set.
An important component of a motherboard is the microprocessor's supporting Chip set, which provides the supporting interfaces between the CPU and the various buses and external components. This chip set determines, to an extent, the features and capabilities of the motherboard.
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