Internet chat rooms are usually straight, said the chat room, a people can chat online forums, and broadcast news people in the same chat room to chat in real time.
The chat rooms can be established (such as MSN Messenger, QQ), P2P software, the World Wide Web (such as Halapo, Meebo), based on the World Wide Web method is more common in instant messaging software and a wide variety of means of conversation is not limited to text, and more, including voice and video. Usually chat room is the room or channel, in the same room or channel network in real-time broadcast and read messages. Under normal circumstances, with other networks, forums, instant messaging, chat rooms, do not save chat history.
The basic principle is that of chat rooms, set aside the CGI and the WWW server receives a request to the browser, according to the HTML specification, to mimic the response of the WWW server, the chat back to the browser. Browse a huge page in the browser seems like the same as always in the page link status, this is a dedicated chat server, a simplified WWW server.