Describe three important applications of data communication networks for strategic, competitive advantage in business use. Give examples of three real world firms who have used networks for competitive advantage in the marketplace and discuss why these networks contributed to their expertise or competitive advantage. Solution Data communication: means exchange of data between devices.A computer network means group of inter connected themselves. A system of inter connected computers and computerized peripherals is called a computer network. The interconnection among computers provides information sharing among them. Computers may connect to each other by wired or wireless media. Network applications: Computer networks provide a no of advantages as listed below: Computer networks are spanned as Thus providing the information exchange, sharing and transfer among systems with in local area extending to the globe. The largest network on this planet is the internet, which a network of networks. The internet hugely connects all WANs and it can have connections to LANs and home networks. Internet serves many purposes for business expertise in providing Three real world firms how have used networks for competitive advantage in the market place are listed below:.