BBS is the abbreviation of English Bulletin Board System, which is translated into "bulletin board system system" or "bulletin board system system" in Chinese. BBS is an electronic information service system. It provides users with a public whiteboard on which each user can post information or make comments. In the early days, BBS was managed by educational institutions or research institutions. Now, most websites have established their own BBS system, which allows netizens to make more friends and express more ideas through the network. At present, BBS is very common in China, which can be said to be numerous. Among them, BBS can be roughly divided into five categories:

(1) Campus BBS CERNET has developed rapidly since its establishment. At present, many universities have BBS, almost all over the country. Tsinghua and Peking University have established their own BBS systems, and Shui Mu Tsinghua in Tsinghua is very popular with students and netizens. Most BBS are established by the network centers of various schools, and there are also private BBS.

(2) Commercial BBS station, mainly used for commercial publicity and product recommendation. At present, mobile phones, computers and real estate commercial stations abound.

(3) Professional BBS Station The professional BBS mentioned here refers to the BBS of ministries and companies, which is mainly used to establish regional file transmission and information release systems.

(4) Emotional BBS is mainly used to communicate emotions and is the first choice for many entertainment websites.

(5) Personal BBS Some producers of personal homepages have built BBS on their personal homepages to accept other people's ideas, which is more conducive to communicating with friends.