NICs

NIC stands for Network Interface Card and is a hardware component that connects a computer to a network.

Early network interface controllers were commonly implemented on expansion cards that plugged into a computer bus. The low cost and ubiquity of the Ethernet standard means that most newer computers have a network interface built into the motherboard.

Most NICs support both wired and wireless connections. Wireless connection NICs have transmitters and recievers where as wired connection NICs have to be connected to the PCs system bus.