A bus is a pathway through which data is transferred from one part of a computer to another.
Consists of the data bus and the address bus.
The data bus transfers the data itself, while the address bus transfers information about where the data is to go.
Has a width, a speed, and a transfer rate.
The width, also called the word size, of a bus is measured in bits.
The speed of a bus is measured in hertz (Hz), or cycles per second.
Transfer rate is the measure of how much data may be moved from one device to another in one second.
Transfer rate can be increased by transferring data multiple times during a cycle or increasing the number of channels used to transfer data.