What is the function of a NIC in a computer?

The correct answer is Network Interface Card. A NIC is a hardware component that allows a computer to connect to a network. It provides the physical interface between a computer and the network, enabling communication over a local area network (LAN) or the internet.

NICs can be used for both wired and wireless connections. In a wired setup, the NIC connects via an Ethernet cable to a router or switch, whereas a wireless NIC enables connectivity through Wi-Fi. Each NIC is assigned a unique identifier known as a MAC address, which helps in data transmission by ensuring that the data goes to the correct device on the network.

Understanding the role of a NIC is fundamental in the field of IT, as it is a basic component necessary for networking and internet access in computing environments.