A Network Interface Card (NIC) is a hardware component that allows a device to connect to a network. It provides the connection needed to send and receive data.
A NIC can provide a wired Ethernet connection or a wireless connection. Most modern computers have network interfaces built into the motherboard.
Related Terms: Ethernet, Wi-Fi, Network Adapter, MAC Address, Ethernet Port, Network Switch, Router, Wireless Adapter, Network Interface, Internet Connection