BBS (Bulletin Board System)A BBS is an electronic version of a bulletin board on which users can post or read messages, or even download public domain software. To make the connection work, the user must have a PC running communications software, a modem and a phone line. On the receiving (or the BBS administrator's) end, you'll typically find a PC, a bank of modems, several phone lines, and BBS communications software. BBS administrators are often called sysops (systems operators). BBS systems were used by many organizations before on-line services such as the Internet, CompuServe, America OnLine and Prodigy became popular. Now many organizations use those on-line services to host their BBS activities.