3. Network Card / Chip

If the computing device is big enough, a network card or chip is often fitted within it.

For example a desktop, laptop or games console usually has the physical size to include one.

If it has, you will see a standard network connector with the graphic of a network next to it, as shown in the picture opposite (little pc's stacked).

There are also two tiny LEDs in the socket that light up and flash green when the network is working and active. They light orange if the network is not working.

A network cable is inserted into the socket and the other end is connected to a modem.

However, many devices are just too thin or too small to include a network socket. For example a tablet computer or e-reader such as the Kindle. In which case the only option is to use Wi-Fi.