An electronic bulletin board is a computer system that enables users to read, post, and exchange messages, functioning as a digital version of a traditional bulletin board.
A newsgroup is a public forum or discussion area on the Internet where messages are posted for public consumption and response. The most famous newsgroups are part of the Usenet system and cover thousands of topics.
A thread is a sequence of messages or postings related to a specific topic, often seen in forums, newsgroups, and email discussions. It typically displays an initial question or topic followed by responses from various users.
