What device provides an Ethernet connection to the network?

The Network Interface Card (NIC) is responsible for providing an Ethernet connection to the network. A NIC is a hardware component that connects a computer or device to a network. It serves as the interface between the device and an Ethernet network, allowing devices to communicate over a Local Area Network (LAN). The NIC converts data into a format suitable for transmission over Ethernet cables, enabling reliable data exchange.

While other devices like hubs, switches, and routers also play important roles in network connectivity, their primary functions differ from that of a NIC. A hub and a switch connect multiple devices on a network and manage data traffic but do not perform the initial task of connecting a single device to the network. A router connects different networks and directs data packets between them, serving a higher-level function in managing traffic across multiple networks. In contrast, a NIC is essential for establishing the first point of connection between a device and the network.