Buses are …. cost & ….

It is hard to connect new devices to each other and to the system

At any one time only one device may use the bus

The speed of the bus is affected by

connect a number of devices, requiring these devices to share the bus

multipoint bus

connecting two specific components

is a bus that connect major components

System bus contains many hundreds of separate lines and each group of them has a separate function

System bus is separated into

CPU and main memory can address each other

CPU can address main memory

main memory can address CPU

Address bus is

Data bus is

Control bus is

collection of wires used to identify particular location in main memory

regulates the activity on the bus

the lines of a bus that carry data

Indicate which device has permission to use the bus and for what purpose (reading or writing from memory or from I/O device

It is used to identify the source or destination of data