Computer network constructing method and computer network

摘要

A computer network which uses a community wiring for TV or wired broadcast and which is hardly influenced by disconnection, short-circuit and noise. The network is a coaxial cable network (1) which can transmit a mixed signal of the received signal of a receiver and a digital signal modulated into an RF signal. This coaxial cable network is provided with a signal input unit (2) for inputting a received signal into the coaxial cable network, and receivers (3a to 3c) and computers (4a to 4c) are connected with the coaxial cable network. Between the coaxial cable network and the computers, there are connected computer connection units (5a to 5c) for modulating a digital signal into an RF signal and for demodulating the RF signal into the digital signal.