Simplex: a data transmission only support data transmission in one direction; only one side can receive or transmit information at the same time, two-way communication can not be achieved, for example: television, radio.
Half duplex: data transmission permission data transmission in both directions, however, at a time, allows data transmission only in one direction, it is actually a switching direction simplex communication ; only possible at the same time receiving one or transmit information, two-way communication can be realized. For example: walkie-talkie.
Full duplex: duplex data communication allows data transmission in both directions simultaneously, and therefore, full duplex communication is two simplex binding mode, which requires sending and receiving devices have separate receive and transmit capabilities ; acceptable while at the same time and send messages, two-way communication, for example: the telephone communication.
Full-duplex network card (Full Duplex) refers to simultaneously transmit data in the card can receive data, both simultaneously, as we usually call it, like, talking at the same time also be able to hear each other's voices. The current cards are generally We support full-duplex.
