IRC
The Internet Relay Chat (IRC) is a protocol that enables real-time text communication over the internet. It allows users to join channels, which are like chat rooms, where they can discuss various topics with multiple participants. IRC is widely used for group discussions, technical support, and community building.
Developed in the late 1980s, IRC has been a foundational tool for online communication. It operates on a client-server model, where users connect to an IRC server using an IRC client. Despite the rise of modern messaging platforms, IRC remains popular among certain communities, especially in open-source software and gaming.