Jarkko Oikarinen wrote Internet Relay Chat (IRC) at the Department of Information Processing Science of the University of Oulu, in Finland, 30 years ago. Even today, people are still using IRC and it is an essential communication tool for many distributed teams.
(Score: 0) by Anonymous Coward on Sunday August 26 2018, @12:55AM
Jabber. ( not Cisco's abomination, the real thing ).
Distributed. Supports everything IRC does and more.