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Data communication is essential to our modern world. It connects us to the devices and services that we depend on. It includes a variety of methods and technologies that determine how information is transferred from one end to the other. Understanding how it functions allows us to create a reliable and reliable network that delivers the benefits of greater connection like increased efficiency and productivity in business and new innovations in automation.

Data communication is the transfer of data between computers over the medium or channel. This can be accomplished via a wire cable or radio frequency, satellite signal or wirelessly. The sender is the person or device transmitting data, and the receiver is the computer that receives the data. In a network for data communication, more than two computers could be involved in the communication process.

Multiplexing and demultiplexing are both communication techniques that optimize bandwidth use and cut costs. Both of these processes require special hardware that can combine and separate signals. This function is often performed by custom integrated circuits which are found in a range of communication devices such as cellphones, computers, and printers.

The data communication mode that allows for simultaneous two-way communication between the same pair of devices is known as full-duplex communications. This mode is more complex than simplex transmission, as it requires the ability to transmit and receive data at the same time.