What is transmission Mode ?


Transmission modes refer to transferring data between two devices. We also know this  the name of communication mode.
It represents the direction of the flow of information.

There are three types of transmission mode :-
  • Simplex Mode
  • Half-Duplex Mode
  • Full-Duplex Mode


Simplex Mode


In simplex mode, communication is unidirectional. Data flow in one direction. The sender can only transmit data but cannot retrieve it.
Simplex mode can use the full capacity of the channel to send data in one direction.

Example : Keyboard and traditional monitor. 



Half-Duplex Mode 


In this, all devices can transmit and receive data but they cannot do it at the same time.
One can only send, the other can only receive, and when one receives, the other can only send.

Example : Only one person can talk at a time in a walkie-talkie.



Full-Duplex Mode


Full-duplex data transmission means that we can send and retrieve data at the same time. This is the fastest directional mode.

Example : Telephone communication system is an example where two people can talk to each other at the same time.