BUS STANDARD

PC buses are designed to match the capabilities of the devices attached to them. when central processing units could send and receive only one byte of data at a time there was no point in connecting them to a bus that could move data. A microprocessor technology improved however chips were built that could send and receive more data at once and improved bus designs created wider path through which he data could flow common bus technology include the following .


# The industry standard architecture bus is a 16 bit data bus is still used in many computer to attach slower devices such as modem and input devices to the central processing unit.
# The local bus was developed to attach faster devices to the central processing unit.A local bus is an internal system bus that runs between components on the motherboard.
# The Accelerated Graphics port (AG P) bus that allow the video card to access the system. RAM directly greatly increasing the speed of graphic performance.
# The Universal Serial Bus (USB) is relatively new bus found on all modern machine this means that a user can connect the disconnect a usb device with out affecting the machine .Usb supporting up to 127 devices connect in either a daisy chain or hub layout.
# Fire wire ports were once found only on computer but they are now increasingly common in compatible PCs. Fire wire is used to connect video devices.