Prerequisite – Transmission Modes in Computer Networks
1. Simplex Mode :
Simplex mode is as on a one-way street, the communication is unidirectional, as on a one-way street. In this, only one of the two devices on a link can transmit, the other can only receive. This mode is use the entire capacity of the channel to send data in one direction.
2. Half-duplex mode:
Half duplex mode is when sender can send the data and also can receive the data but one at a time. It is two-way directional i.e bi-directional communication but one at a time.
Difference between Simplex Transmission Modes and Half Duplex Transmission Modes :
|Sr.no||Simplex Mode||Half-duplex mode|
|1.||The sender can send the data but that sender can’t receive the data.||The sender can send as well as receive the data but does one task at a time.|
|2.||In simplex mode data flow is Unidirectional.||In Half duplex data flow is two-directional but one at a time.|
|3.||In this bandwidth utilization is maximum.||In this there is less utilization of bandwidth during transmission.|
|4.||Simplex mode provides worst performance than full duplex mode.||Half duplex mode provides less performance than full duplex mode.|
|5.||In this, one station is the transmitter and the other is the receiver. Here, information is one way, that is, it is only the transmitter that sends data or information.||In this, two systems are connected by a point to point link to transmit and receive signal. Both ends can transmit signal but one at a time.|
|6.||Keyboard and traditional monitors are example of simplex mode.||Walkie-Talkies and Text message are example of half duplex mode.|
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