The term “Wi-Fi” refers to a trademark of the Wi-Fi Alliance, although it’s likely that the term itself originated from the original “Hi-Fi”, or “high fidelity” audio recordings and stereo equipment to play them. In general usage, Wi-Fi refers to any type of wireless internet access. Various devices with wireless access such as laptops, video game consoles and mobile phones will connect to a “hot spot” or access point, which is usually connected via some sort of landline connection or satellite link.
Wi-Fi hotspots usually involves an aerial, which broadcasts the signal. The wireless device receives the signal and typically broadcasts it to any device within range. In many cases the broadcast will be encrypted and an access code will be required to receive it. This helps to keep those who did not pay for the service from “piggybacking” the service, or accessing it for free.
Wi-Fi is in increasing use in homes in the UK. It allows multiple users to access the internet at the same time. People who work from their homes as well as those with several children with homework assignments have found Wi-Fi access indispensable as they try to keep up with increasing internet access demands. Once Wi-Fi is set up in your home, all that anyone needs is an internet-enabled device and they’re up and running.
Small businesses are also finding Wi-Fi to be an affordable method for keeping employees productive. Wi-Fi can also be found in many airports around the world, and even in some cities. Sunnyvale, California (USA) became the first city to offer free, city wide Wi-Fi access in 2005.