Question

Describe the role of nic in a network in tutorial

Answer 1

What Is the Function of a Network Interface Card?By Jason ArtmanShareShare on FacebookA Network Interface Card -- or NIC -- is an add-on device that enables a computer to communicate with other computers. When multiple computers are linked together using NICs or other devices, the resulting group is called a "network." In fact, when you connect your computer to the Internet, you are connecting it to the world's largest network. Today, most computers have built-in functionality equivalent to that of a NIC and only require add-on cards under special circumstances.A young businessman is plugging in an ethernet cable.credit: XiXinXing/XiXinXing/Getty ImagesAbout Network Interface CardsA wired computer network uses cables called "Ethernet" or "RJ45" to move data between client computers, switches, routers and servers. A NIC provides a computer with the required interface for an Ethernet cable and also provides the translation necessary to convert data into a form that can be transmitted over the cable. Most desktop and notebook computers have motherboards with built-in Ethernet ports and don't require add-on cards to connect to Ethernet-based networks. However, some thin notebook computers lack Ethernet ports. Instead, these notebooks have built-in adapters for connecting to wireless networks.