
Network interface controller
Hardware component that connects a computer to a network / From Wikipedia, the free encyclopedia
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A network interface controller (NIC, also known as a network interface card,[3] network adapter, LAN adapter or physical network interface,[4] and by similar terms) is a computer hardware component that connects a computer to a computer network.[5]
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Connects to | Motherboard via one of:
Network via one of: |
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Speeds | Full-duplex or half-duplex:
Full-duplex:[1][2]
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Common manufacturers | Intel Realtek Broadcom (includes former Avago, Emulex) Marvell Technology Group Cavium (formerly QLogic) Mellanox Chelsio |
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, or is contained into a USB-connected dongle.
Modern network interface controllers offer advanced features such as interrupt and DMA interfaces to the host processors, support for multiple receive and transmit queues, partitioning into multiple logical interfaces, and on-controller network traffic processing such as the TCP offload engine.
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