Final answer:
A bus is a link between devices connected to a computer, allowing data to be transferred between different components of the computer system.
Step-by-step explanation:
A bus is a link between devices connected to a computer. It is a communication pathway that allows data to be transferred between different components of a computer system, such as the CPU, memory, and peripherals.
The bus acts as a highway through which information travels, enabling devices to exchange data and instructions. It carries signals and data in the form of electrical pulses or waves, facilitating the flow of information within the computer.
For example, when you plug in a USB device like a printer or a mouse, it connects to the computer through the USB bus.