When BUS is a data transmission path signal power in our computer system. So it is a circuit for controlling the system BUS called BUS Controller, which in the past have Chip IC that acts directly excluded by the current package also includes a control circuit BUS into the North Bridge Chip by the control circuit. BUS system will act The channel signal types to work together as a system. On the motherboard to the requesting device applications such as CPU, and I / O, Port facilities.