system bus
consists of three separate buses carrying control signals, adresses and data
bus request
indicates that a device is requesting the use of the data bus
bus grant
indicates that the cpu has granted access to the data bus
clock
used to syncronise operations
buses
a common physical pathway shared by the signals to and from serveral components in a computer
data buses
the part of the bus whihc carries the actual information
address buss
the part of the bus which carries identification about where the data will be sent
control bus
carries comand and control signals to and from every comonent of a computer