Wi-Fi access refers to the ability to connect to the internet wirelessly using radio waves. It allows devices like smartphones, laptops, and tablets to communicate with a router, which is connected to the internet. This technology enables users to browse the web, stream videos, and send emails without needing physical cables. To access Wi-Fi, users typically need to be within range of a Wi-Fi network and may require a password for security. Many public places, such as cafes and libraries, offer free Wi-Fi access, making it convenient for people to stay connected while on the go.