Here we emphasize the more basic concepts and techniques relevant to each category. Thus the processing involved in providing the user interface is done locally without need to pass data across the network. Processing involved in accessing the information is done at the server. Electronic mail enables the exchange of messages and files via computer. Messages are posted and read on computers which host News.
News comprises thousands of newsgroups covering many subject areas.
To access News, you need an account on a computer which receives Usenet feeds and access to a Newsreader program such as Tin. Or you may be able to read news through a WWW browser. You can only participoate in newsgroups that are carried locally. The local computer is used as a terminal to the remote computer. File transfer enables copying of files from one computer to another.