With suitable example explain simplex, half-duplex and full-duplex communication.

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34.With suitable example explain simplex, half-duplex and full-duplex communication.

Communication between two hosts can be in one of the following ways,

(i) Simplex
(ii) Half-duplex
(iii) Full-duplex.

(i) Simplex Mode:

In this type of transmission mode, the data can be transmitted only in one direction at any time i.e., this type of communication is unidirectional in which one host transmits the data and the other host receives it. The complete channel bandwidth is utilized. Monitors and keyboards are the examples of simplex devices because at any lime the input can be inserted through the keyboard which is accepted by the monitor.

Simplex Date Transmission
Simplex Date Transmission

(ii) Half-duplex Mode:

In this type of transmission mode, the data can be transmitted in both the directions
but only one host can transmit at any time. ibis type of data transmission is used when no data has to be transmitted in both directions simultaneously. The entire channel bandwidth can be used for each direction.

Walkie-talkies and citizens based radios are the examples of half-duplex devices.

Half duplex Transmission
Half duplex Transmission

(iii) Full-duplex Mode:

In this type of data transmission, the data can be transmitted in both the directions at
the same time. This mode is suitable for simultaneous bidirectional communication. The entire channel bandwidth is divided among the two directions in which the data is
transmitted.

Telephone conversation is an example of full-duplex data transmission in which both
the persons can talk and listen at the same time.

Full duplex Transmission
Full duplex Transmission



 

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