A hypothetical chat/messaging system.
Introduction
There are many examples of messaging or chat systems today. However,
the earliest form of live chat software evolved around the PLATO system at the University of Illinois. One of its functions included a method of reporting bugs known as ‘notes’. It comprised of an open text document that anyone could edit and add comments to.
In 1973, Doug Brown and David Woolley — two PLATO system programmers — expanded on this idea. Doug came up with the idea of a program that would allow group chats. In other words, a chat room.
He wrote a simple, one-room prototype and named it ‘Talkomatic’. David Woolley then worked with Doug to expand Talkomatic.
Talkomatic chats could host up to five people, and the chats happened in real-time. That is, you could watch your fellow chatters type their messages, letter-by-letter. This marked the birth of real-time chat." See History of chat and Brief History of Chat Apps
The documents contained in this area describe the requirements and architecture for a hypothetical chat/messaging system called MyChat.