Data communication is the transfer of information between two points via networks. It could be a wired medium such as optical fibers or copper wires or a wireless medium such as microwaves or radio waves or even a computer network. The electromagnetic signal that is used to transmit information can vary in speed or amplitude.
Transmission of information over long distances is perhaps the most difficult aspect of data communication. Signals that travel over long conductors could be affected by noise or electrical distortion which could corrupt the original data.
Error detection is a crucial element in ensuring that data communication is successful. This is done by adding a variety of checksums to the data packets that compose a transmission and comparing the sum to all packets arriving at the destination. If the sum that is derived is equal to zero, then no errors have occurred during the data transmission.
To ensure the accuracy and reliability of data communication, it’s important to maintain a high speed of transmission. This can be achieved by ensuring that the data flows over a medium that is free from interference, or by sending redundant data to prevent loss due interruptions in the moment.
Data communication that is efficient is essential for many applications, including traffic information, chat downloads, file downloads and other internet-based services. Traffic data, for example, can provide real-time traffic estimates to motorists and pedestrians on the road, which will help them make better decisions.