What function does a network interface card provide to a computer?

The network interface card (NIC) is an essential component that allows a computer to connect to a local data network. It serves as the hardware interface between the computer and the network, enabling communication with other devices over a wired or wireless connection. The NIC handles the conversion of data into signals that can be transmitted over the network and vice versa, ensuring that data sent from the computer can be correctly interpreted by other devices within the network.

By facilitating this connection, the NIC allows for the sharing of resources, such as files and printers, and enables internet access, fostering communication and collaboration in networked environments. This functionality is crucial for both personal and professional use, highlighting the importance of the NIC in modern computing.