BUSES:
“A collection of conducting wires which is responsible for communicating signals from one place to another place in a computer system.”
“A bus is a “highway” of digital signal it consist of a set of physical connection (printed circuit tracks and wires) over which the data and other information are moved for one place to another place”.
Address Bus:
The address bus requests the memory location from the memory or I/O location from an I/O device. If an I/O is addressed, address bus contains 16-bit I/O address. The 16- bit I/O address selects one of the different I/O locations.
Data Bus:
The data bus transfer the information between microprocessor and its memory an I/O locations. Data transfers vary in size depending upon the microprocessor.
Control Bus:
The control bus contains lines that select the memory or I/O and cause them to perform read or write the operations.
