Computer networks—especially the Internet—play a huge role in many computer applications. Even a typical household may have its own small network connecting computers, printers, and scanners. There isn’t room to cover computer networking in great depth here, but it is useful to understand some basic computer terminology.
A computer network is a series of connected devices that allow computers to communicate. Those devices include:
Network interface card (NIC) Connects a computer to a network and provides the necessary electronics to send and receive the network’s electrical signals. NICs are also called network interface controllers, network adapters, LAN adapters, and other similar terms.
Hub A device with several ports that takes the signals ...