A port is a logical attachment point for a computer communication. Ports in the network sense are not physical devices, but rather they are simply numbers. When a computer wants to allow other computers to communicate with it, it must have some way of keeping track of the various communications. Ports are one mechanism used to help track the computer’s communications.
Port vs. Port
The term port is actually overloaded as it relates to networking, meaning that it has more than one networking definition. The term port often describes a physical connection into which another physical device can be inserted, such as a VGA monitor port or an Ethernet network port. These are not the types of ports we are discussing here. Instead, ...