The Basics of Data Communication

Data communication is essential to our digital world. It connects us to the devices and services we rely on. It is comprised of a variety of methods and media that dictate the way information is transmitted from one end to the next. Understanding how this works can help us to design reliable and efficient networks that reap the benefits of greater connectivity like improved business efficiencies in productivity, as well as improvements in automation.

The fundamental concept behind data communication is the transfer of data from one computer to another using the medium or channel. This can happen via cable or radio frequency, satellite signal, or wirelessly. A device or individual who transmits data is referred to as the sender and the computer that receives the data is referred to as the receiver. A data communication network may contain more than two computers involved in a process of communication.

Multiplexing and Demultiplexing are communication techniques that optimize bandwidth use and reduce costs. Both of these processes require special hardware capable of combining and separate these signals. Custom integrated circuits are typically used to perform this function and are present in many communications devices such as phones, computers and printers.

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

John Avery

POSTED BY John Avery
11th June 2024