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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 various modes of data transmission function is essential to creating reliable and efficient networks. Different methods determine how data is transmitted.

Hardware in a data communication circuit uses a variety of methods to send data effectively. These include desmultiplexing and multiplexing. These are processes that combine or separate signals, and then send them as a combined signal. This maximizes bandwidth and reduces costs. Error detecting code and signal amplifiers also minimize the chance of data corruption due to electrical disturbances or noise that could alter bits of information while they travel along the channel of communication.

Data communications also have a set of rules (protocol) that are followed by both the computer systems that transmit and receive data. These rules ensure that the message is understood and accepted without error.

The sender could be a computer, or a different device that creates the message and then transmits it. It could be in the form text, numbers, pictures or even videos. The device or computer that receives the message could be different from the sender. The transmission medium is a physical connection that connects the sender and the receiver. It can be wired, such as the twisted-pair wire, or fiber optic cable, or wireless like lasers or radio waves.

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