What are the three networks in the community?

Telecommunication network, computer network and cable TV network. 1, these three technologies provide people with various media communication services such as voice, data and images through technological transformation.

2. Telecommunication network is a communication system in which multiple telecommunication systems communicate with each other. It is an important infrastructure for human beings to realize long-distance communication. It uses cable, wireless, optical fiber or other electromagnetic systems to transmit, transmit and receive symbols, characters, images, sounds or other signals.

3. Computer network is a communication network formed by the interconnection of multiple computers through communication lines, which is the product of the combination of computer technology and communication technology.

4. CATV network is an efficient and cheap integrated network. Cable TV network uses coaxial cable laid by cable TV to transmit data signals, which has the advantages of wide frequency band, large capacity, multiple functions, low cost, strong anti-interference ability, and supporting various services to connect thousands of households.