AUTOMATION-->COMMUNICATION PROTOCOLS
Common Topics:
Serial Communication:
Serial communication is a communication method that uses one or two transmission lines to send and receive data, and that data is continuously sent and received one bit at a time.
Parallel Communication:
parallel communication is a communication method,in which in data transmission, parallel communication is a method of conveying multiple binary digits (bits) simultaneously.
Synchronous Transmission:
A Transmission method that uses synchronized clocks to ensure both the sender and receiver are synchronized to transmit data. And they sends blocks or frames of data.
Asynchronous Transmission:
A Transmission methos that send data using flow control rather than using a synchronous clock to transmit data between the source and the destination. And this will sends one Byte or character.
Transmission modes:
There are 3 types of transmission modes which are given below: Simplex mode, Half duplex mode, and Full duplex mode.
Simplex mode:
In simplex mode, Sender can send the data but that sender can’t receive the data. It is a unidirectional communication.
Example of simplex mode are: Keyboard and monitor.
Half-duplex mode:
In half duplex mode, Sender can send the data and also can receive the data but one at a time. It is two-way directional communication but one at a time.
Example of half duplex mode is: Walkie-Talkies.
Full duplex mode:
In full duplex mode, Sender can send the data and also can receive the data simultaneously. It is two-way directional communication simultaneously.
Example of full duplex mode is: Telephone.
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