What Does Network Port Mean?
A network port is a process-specific or an application-specific software construct serving as a communication endpoint, which is used by the Transport Layer protocols of Internet Protocol suite, such as User Diagram Protocol (UDP) and Transmission Control Protocol (TCP).
Techopedia Explains Network Port
If you could consider all the addresses a computer processor could talk to as the address space, then certain addresses will have specialized purposes. For example, an address could be a memory address or another address could be a port address. A port address could be used to talk to external processes or devices. A port then, is simply a hole in the processor address space where data can be sent and received from.
