Module 1, Concepts of Information and Communication Technology (ICT)

A computer port is very much like a shipping port.

In a shipping port ships will dock (connect to the quayside) and unload people and cargo (data), and/or take on-board passengers and goods (data).

Computer ports are similar - they allow external devices to connect and transfer data to or from the computer.

A specific port is identified by its number, known as the port number, and the protocol used for communication. Let's explore some of the common ports you will find on a computer...