Also called a "network interface card" (NIC), an Ethernet adapter is a card that plugs into a slot on the motherboard and enables a computer to access an Ethernet network (LAN). In the past ...

If you play your cards right ... which means the more devices that are connected to a single wireless network, the worse the quality is. Being connected via Ethernet does require the trade ...

to the wide area network (WAN), enabling companies to connect their Ethernet LANs to service provider networks via the same Ethernet interface they use to attach every device in the network.