How WiFi Wireless Technology Works

Little Background

The age where computers are connected together and connected t the internet through long cables is slowly coming to an end. Today, it is more common connecting computers without having cables all around us. This technology is called WiFi, wireless fidelity, also commonly referred to as wireless LAN. This makes us capable of connecting to out office networks and internet without connecting our computer with cables.

To go wireless you will need:

• Router (A modem like device that transmints the internet signal in a form of a radio signal. It also recieves information that is send from a computer in the network)
• Wireless Card (Receives and send information to the router ising the radio signal)

WiFi is based on a network standard, 802.11, which was established by the WiFi Alliance (WiFi Alliance). There are several networks, with 802.11, 802.11a, 802.b, and 802.11g being the most popular (IT 103, pg. 189). The differences between the networks are that each works on a different frequency and have different transfer speeds. Bellow is a chart comparing the most popular networks.

(Source: It103 page 189, and Wireless LAN technologies and Microsoft Windows)