Network adapter

A network card is also called a network adapter or NIC (Network Interface Controller). A network card can be an Ethernet adapter or a WLAN adapter. The network card is necessary to connect a computer to a network. A network already exists when two computer are connected or communicating with each other. There are different types of networks, such as Arcnet, Ethernet and Token Ring. For each of these types of networks, the corresponding network card is required. The most common are the WLAN as well as the Ethernet network card.