Where do the network adapters look?

Where is the network adapter? In fact, the network adapter is that we often say "network card", the hardware is of course in the motherboard with a small light bulb that!

Where to view the network adapter, right click on My computer on the desktop--Properties--hardware--device management--the 2nd and last item you can see your so-called "network adapters". (see below for illustration)

Which layer does the network adapter belong to?

The first layer of the seven-tier model, the physical layer, the network adapter also known as the NIC or network interface card (NIC), English name Networkinterfacecard. It is the device that makes the computer networked. The usual network adapter is the one that connects the PC to the LAN. The network card (NIC) is plugged into the computer's motherboard slot and is responsible for converting the data that the user wants to pass into a format that can be recognized by other devices on the network and transmitted over a network medium. Its main technical parameters are bandwidth, bus mode, electrical interface mode and so on. Its basic functions are: from parallel to serial data conversion, package assembly and disassembly, network access control, data caching and network signal. Currently, the main 8-bit and 16-bit network card.