The most basic conference system consists of microphones, amplifiers, speakers, and desktop display devices (such as desktop smart terminals and LCD displays). The combination of these devices can also be considered a conference system. They play a role in transmitting sound, displaying sound, and amplifying sound, achieving the ability to see, hear, and speak.

With the development of science and technology and the improvement of functional requirements, especially the popularization and application of computers and networks, the scope of conference systems has expanded, including voting/election/review, video, remote video, teleconferencing, simultaneous interpreting and translation, desktop display, which are the basic elements of modern conference systems, and a series of related equipment has been derived, such as central control, temperature control, light source control, voice control, power control, etc. Driven by the development of modern technology, conference systems are defined as a complete set of software and hardware related to conferences.