Bulletin Board System; BBS (An online messaging system and discussion forum which allows users to post notices and comments to members of an interest group who are connected to the same network. A BBS is similar in function to a Web site, but lacks graphics and has its own telephone number which the user must dial with the aid of a communications program. Bulletin board systems have been largely superseded in the United States by the World Wide Web, but are still used in parts of the world which lack direct access to the Internet.)
