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What is Wi-Fi?

What is Wi-Fi?

Wi-Fi The wireless age has dawned, and Wi-F-i is at the heart of it. Wi-F-i is a wireless network which uses radio frequencies instead of cables to transmit data.

A wireless network in not truly wireless as it is built around a source computer connected to the internet via an Ethernet cable. This computer has a router that changes data into a radio signal that can be picked up by an antenna inside your wireless device. To prevent outside interference, the router uses a precise frequency band – just like a walkie-talkie.

When you try to browse the internet using your laptop, an adaptor within the machine communicates with the router via radio signals. The router decodes the signals and fetches the relevant data from the internet through the wired Ethernet connection. This information is converted into radio signals and beamed to the laptop’s wireless adaptor. The laptop then decodes this message and (hopefully) shows you the page you googled!

Fast Fact: Wi-F-i does not actually stand for anything. It is a play on the term Hi-Fi. Many people believe Wi-F-i is short for ‘Wireless Fidelity’ (what does that even mean?)


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