Chat

Any system that allows any number of logged-in users to have a typed, real-time, on-line conversation, either by all users logging into the same computer, or more commonly nowadays, via a network. The medium of chat is descended from talk, but the terms (and the media) have been distinct since at least the early 1990s. talk is prototypically for a small number of people, generally with no provision for channels. In chat systems, however, there are many channels in which any number of people can talk; and users may send private (one-to-one) messages. Common chat service providers who provide free chat service are Yahoo, MSN, AOL, Rediff. The tool where many people can chat is called as chat room. Through chat one can transfer files, photographs and also have a have a video conference.