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, @03:43PM
also, you can loggin to some #yourchannel with "computerA".
sit in a plane, travel the world, login to #yourchannel@IRC, do a "whois computerA" with computer B and then do all kindda of TCP/UDP to "computerA".