A port in computer networking and telecommunications is a connection point where a cable or other communications medium can be attached. Ports are either physical connectors on a device or logical entities in software.

A port can be used to access the network, to connect to other devices, or to exchange data with other devices. Ports can be either input or output, depending on their function.

Input ports are used to send data into a device, while output ports are used to send data out of a device. In some cases, a port can be used for both input and …