Write short notes on Wi-Fi

Wi-Fi stands for Wireless Fidelity. It uses radio waves to create a secure, reliable and fast Wireless Local Area Network (WLAN). The devices require a wireless adapter to connect to the WLAN using WiFi. It is widely used to share an internet connection among the devices connected to the WLAN. Its advantages are:

1. It can be used to connect to Internet anywhere and anytime and is quickly replacing the wired medium.
2. It is relatively cheaper compared to the wired medium.
3. Multiple devices can be connect with WiFi to create a WLAN.

Its limitations are:

1. Higher power consumption.
2. Slower speeds than wired medium.
3. Transmission breaks or slows down when there is noise interference.