^ ab"Talker History". NetLingo the Internet Dictionary. Retrieved 2010-04-13. Single-server talkers on the internet first appeared in 1990, with the talker Cat Chat. This was a hack of the LPMud source code, put together by Chris Thompson (aka 'Cat') at Warwick University, in England.
^Stephens, Daniel. "Cheeseplant's House". /home/daniel, the ramblings of Daniel Stephens. It wasn't too long before something significant happened, I started to spend some time on Cat Chat. This was an LPmud, which had its rooms replaced by a number of 'Channels', and which had its user command set reduced to just those required for communication (for the most part).