Seonglae ChoInternet Relay Chat
A real-time chat protocol created in 1988 by Finnish hacker Jarkko Oikarinen that exploded in popularity among hackers at the time
/join#channel
/msgmessage
IRC
IRC is a text-based chat system for instant messaging. IRC is designed for group communication in discussion forums, called channels, but also allows one-on-one communication via private messages as well as chat and data transfer, including file sharing.
https://en.wikipedia.org/wiki/IRC
