The Basics of Data Communication

Data communication is vital to our modern world. It connects us to the devices and services we depend on. It is comprised of a variety of methods and technologies that determine how information is sent from one end to another. Understanding how it works enables us to design a highly efficient and reliable networks that provide the benefits of greater connection like improved efficiency and productivity of businesses as well as innovations in automation.

Data communication is the transfer of data between computers over channels or medium. It can be done via cable, radio frequency, satellite signal, or wirelessly. A device or person who transmits data is known as the sender, while the computer that receives the data is known as the receiver. In a data communication network, more than two computers could be involved in the communication process.

Demultiplexing and multiplexing are both useful communication techniques that allow multiple signals to be transmitted over an medium at once, thus optimizing bandwidth utilization and reducing costs. Both of these processes require specific hardware that can combine and separate signals. Custom integrated circuits are frequently used to perform this function and are present in a variety of communications products including cellphones, computers, and printers.

Full-duplex communication is the mode of data communications that allows simultaneous two-way communication within two devices. This type of communication is more complicated than simplex transmission since it requires the capability to send and receive data at the same time.

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