A NIC provides a computer with a dedicated, full-time connection to a network. It implements the physical layer circuitry necessary for communicating with a data link layer standard, such as Ethernet or Wi-Fi. Each card represents a device and can prepare, transmit and control the flow of data on the network.

Why is network interface card important?

The network interface card (NIC) or network card is the hardware device most essential to establishing communication between computers. ... If two computers send data at the same time, it causes a collision that's detected by the other workstations, and the computers will wait a random time interval to send the data again.

What is the function of a network interface card?

A network interface card (NIC or network adapter) is an important hardware component used to provide network connections for devices like computers, servers, etc. With its wide applications, there are various types of network interface cards emerging in the market like PCIe card and server network card.