ELI5: Explain Like I'm 5

ethernet

Ethernet is like a highway that helps computers talk to each other. It's how you get a website from your computer to the internet, and how you get papers from your printer to your computer. It's a cable, like an extension cord, but this special cord helps send messages at an even faster speed than your regular old cord. All your friends who want to get on the highway just plug their own cable into the special ethernet cable, like a giant daisy chain.