IRC is a multi-user chat system, where people convene on “channels” (a virtual place, usually with a topic of conversation) to talk in groups, or privately.
– irc-faq; Version 1.53; November 28, 1995.
Using IRC requires setup and configuration of a client application, location
of servers and channels, mastery of a few key commands, and observance of chatiquette.
The following subsections provide more information: