Sep27
What is Wi-Fi and How Does it Work?
Wi-Fi allows us to access the internet without the use of wires and messy cables. It uses radio waves in the same manner as cell phones and radios do. In truth, using Wi-Fi is almost exactly like using a two-way radio to communicate. When your computer’s wireless card begins to translate data into a radio signal, it utilizes an antenna. The router than starts receiving and simultaneously decoding the signal in a way that allows it to be sent back to the internet via Ethernet cables which run from the router to the cable modem. This helps explain it more.
This process can also work in reverse with a router set up to receive information from the internet and translating it into a new radio signal to be sent back to the wireless card. This is why radios used in Wi-Fi technology are often compared to walkie-talkies and cell phones. Because they are able to receive radio waves, they can also transmit them and convert computer language into new radio waves and vice-versa. There are a few differences between these technologies, though. For starters, Wi-Fi transmits at a frequency of either 2.4GHz or 5GHz, which is much higher than radios or cell phones. This allows the two-way signal to transmit more data at once.