Data Communication - The Lifeblood of Digital Networks
wadminwIn our increasingly interconnected digital world, data communication is the vital ingredient that connects us. Understanding how different modes for data transmission work is vital for designing reliable and efficient networks. Different methods determine how data is transmitted.
Hardware in a data communications circuit uses a variety of methods to send data effectively. These include desmultiplexing and multiplexing. These are processes that combine or separate signals and transmit them as one combined signal. This maximizes the utilization of bandwidth and reduces the cost. Signal amplifiers and error-detecting codes minimize data corruption caused by electrical or electromagnetic disturbances.
Data communications also include rules (protocol) that are followed by 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 another device that creates the message and then transmits it. It may be in the form text, numbers, pictures, sounds or videos. The device or computer which receives a message could be the same or different from the one that sent it. The transmission medium is a physical route that connects the sender and receiver. It can be wired, for instance, fiber optic cable, or wireless such as radio waves or lasers.
