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What is Data Communication?

A key aspect of data communication is knowing your audience and creating visualizations that convey information in a convincing manner. Effective data communication may involve using the appropriate words to convey that information.

The basic definition of data communication is the transfer of information from one computer to the other over a network or other medium. Information could range from a simple audio file to the form of a text message. The data can be sent wirelessly or via wired medium. To be capable of communicating they must have a means to connect. This is called a channel or network.

Modern networks for data communication use a variety of data transmission channels. There are three types of data transmission channels: simplex, full-duplex, and duplex. Simplex mode lets information flow only in one direction, while duplex mode allows www.bigdataroom.net/how-to-recover-a-corrupt-word-or-zip-file the transmitter and receiver to transmit simultaneously. Full-duplex is similar to duplex however it requires that both receiver and the transmitter be connected to read the binary data bits of the signal being transmitted.

Information transmitted through a data communication channel can be either digital messages transmitted by a microprocessor, or an analog signal (such as phone calls or video) that is digitalized by using pulse-code modulation. To ensure that the receiver receives only the correct data, any errors in data transmission have to be detected and rectified. This is typically accomplished with a combination of sequence numbers and acknowledgement codes.