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This article is about the difference between simplex, half-duplex and full-duplex in big data. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Simplex data transmission only supports data transmission in one direction; only one party can accept or send information at the same time, and can not achieve two-way communication, for example: television, radio.

Half-duplex data transmission allows data to be transmitted in both directions, but at a certain time, data is only allowed to be transmitted in one direction, which is actually a kind of simplex communication in switching directions; only one party can receive or send information at the same time, and two-way communication can be realized. Example: walkie-talkie.

Full-duplex data communication allows data to be transmitted in both directions at the same time, therefore, full-duplex communication is a combination of two simplex communication modes, which requires that both sending and receiving devices have independent receiving and transmitting capabilities; information can be received and sent at the same time to achieve two-way communication, for example: telephone communication.

The full duplex (Full Duplex) of the network card means that the network card can receive data while sending data, and the two are carried out simultaneously. This is like we usually make phone calls, we can also hear each other's voice while talking, and the current network cards generally support full-duplex.

Figure: (simplex, half-duplex, full-duplex respectively)

Extended data:

Simplex, half-duplex and full-duplex are three kinds of communication channels in telecommunication computer network. These communication channels can provide a way to convey information. The communication channel may be a physical transmission medium or a logical connection through a multiplexing medium. Physical transmission media are materials that can propagate energy waves, such as wires in data communications. And logical connections usually refer to circuit switched connections or packet mode virtual circuit connections, such as wireless telecommunications channels. With the help of communication channels, information can be transmitted without obstacles.

Simplex mode is generally used in situations where data is transmitted in only one direction. For example, the communication between the computer and the printer is simplex, because only the computer transmits data to the printer, and there is no data transmission in the opposite direction. And in some communication channels, such as simplex wireless transmission and so on.

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