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Data Communication – The Lifeblood of Digital Networks
In our increasingly interconnected digital world data communication is the vital ingredient that connects us. Understanding how different methods of data transmission work is crucial in the design of reliable and efficient networks. Different methods determine how data is transmitted.
To transmit data efficiently, hardware in a data communication circuit will use various techniques like multiplexing and demultiplexing processes, which combine and separate signals into single composite ones for transmission, and then back into the individual components. This maximizes the utilization of bandwidth and decreases the cost. Error detecting codes and signal amplifiers reduce data corruption due to electromagnetic disturbances or other noise that may change bits of data as they travel over a communication channel.
Data communications also have a set of rules (protocol) that are followed by both the sender and receiver computers. These rules ensure that the message will be understood and accepted correctly.
The sender is the computer or device that generates and transmits the message, which may be in the form of numbers, text pictures, sounds, or video. The computer or device that find more info receives a message can be the same or different from the sender. The transmission medium is a physical path that connects the sender and receiver. It can be wired such as the twisted-pair wire, or fiber optic cable, or wireless like lasers or radio waves.
