Data communication, which is the transmission of digital data through a network or to a device external to the sending device, is the cornerstone of modern telecommunications. Telephones, computers, the Internet and wireless technology have transformed society in virtually every way from the personal to the business realms; without it, contemporary society would be vastly different.
Data communication is an essential concept in the creation of computer networks. Prior to the invention of networks, data had to be physically carried from one device to another. With digital networks, that task is not only easier, it is accomplished much more quickly. The ability has driven the entire computer industry, including software innovations and the creation of the Internet as a medium for use by both professionals and the public. As the industry grows, more people connect more devices to a network, resulting in a scope that increases exponentially.
Because of innovations in data communications technology:
- People can communicate and share information virtually instantaneously across the entire globe.
- Education and business concerns can take place no matter where the individual parties are located.
It is not an exaggeration to say that modern societies rely on data communications in order to function.