There are two types of computer ports: physical ports and virtual ports. Virtual ports are also called software application ports or TCP/IP ports. Today my topic is about computer physical ports. These ports include Ethernet ports, peripheral ports, audio ports, and graphics/video ports.

Playlists:
Ports, port #, & TCP/IP applications

Topology & cabling, & physical cabling structure:

Ethernet Basics:

IPv4 Basics:

OSI Model and related:

source
ipv4