A network interface controller is a computer hardware component that connects a computer to a computer network.
A 1990s Ethernet network interface card that connects to the motherboard via the now-obsolete ISA bus. This combination card features both a BNC connector (left) for use in (now obsolete) 10BASE2 networks and an 8P8C connector (right) for use in 10BASE-T networks.
12 early ISA 8 bit and 16 bit PC network cards. The lower right-most card is an early wireless network card, and the central card with partial beige plastic cover is a PSTN modem.
A Qlogic QLE3442-CU SFP+ dual-port NIC
An Asynchronous Transfer Mode (ATM) network interface
In computer science, computer engineering, and telecommunications, a network is a group of communicating computers and peripherals known as hosts, which communicate data to other hosts via communicati
Network interface controller
…a network interface card, network adapter, LAN adapter and physical network interface) is a computer hardware component that connects a computer to a computer network. Early network interface controllers were commonly implemented on expansion cards that plugged into a computer bus. The low cost and ubiquity of the…
Fiber-optic cables are used to transmit light from one computer/network node to another.
Computers are very often connected to networks using wireless links.
A typical home or small office router showing the ADSL telephone line and Ethernet network cable connections