先决条件 – 计算机网络中的传输模式
1. 单工模式:
单工模式就像在单向街道上一样,通信是单向的,就像在单向街道上一样。在这种情况下,一条链路上的两个设备中只有一个可以发送,另一个只能接收。这种模式是利用信道的全部容量向一个方向发送数据。
示例:- 键盘和显示器。
2.半双工模式:
半双工模式是发送方可以发送数据,也可以一次接收一个数据。它是双向的,即双向通信,但一次一个。
示例:- 对讲机。
单工传输模式和半双工传输模式的区别:
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. |