Connecting to a Network and the Internet
Understanding Networking Concepts
Networking is vital to getting the most out of your MacBook Air. OS X manages most of the details of networking your MacBook Air for you, but it is helpful to understand essential networking concepts as you create your own network.
Simply put, a network is two or more devices connected together. A network enables the devices on it to communicate with each other. Devices communicate using various protocols to provide different services. For example, the Transmission Control Protocol/Internet Protocol, or TCP/IP, is the basic “language” ...