What Is Data Communication?

Data communication is the transfer of information between two points through networks. This could be a wired medium, such as optical fibers or copper wires or a wireless one like radio waves or microwaves, or even a computer bus. The information being transferred is usually represented by an electromagnetic signal which can differ in speed or amplitude.

In the field of data communication the most difficult part is transmitting information over long distances. This is because signals that travel through long conductors are vulnerable to noise or electrical distortion that can corrupt the original information.

Error detection plays an important role in successful data communication. This is achieved by adding a number of checksums to the data packets which comprise a transmission, and then comparing that sum to all the packets at destination. If the resulting sum is equal to zero, then there is no error have occurred in the data transmission.

For reliable and accurate data communication, it is essential to maintain a high speed of transmission. This can be achieved either by ensuring that data is transferred on a medium free from interference or by sending redundant data to avoid loss due to interruptions that occur in the moment.

Data communication that is efficient is essential for many applications, including chat, traffic information, file downloads and Internet-based www.bigdataroom.net/how-to-block-someone-on-hangouts services. For instance, traffic data communicates real-time estimations of traffic speed to drivers and passengers in vehicles on roads, which could help them to make more informed decisions regarding their journey.