What is NIC in a Network Device?

Network Interface Card (NIC) is a hardware circuit board which help our devices to connect to the network. After installing the NIC hardware on our device, we need to install the TCP/IP stack or a driver (network driver) on our device. There will be a port or interface on the NIC where we need to connect the Network cable to get connect to the network. Also wireless NIC are available to connect with wireless network.

The NIC is also known as network interface controller, network adapter or LAN adapter.