Wi-Fi
Simple Explanation
A wireless way for nearby devices to connect to a network, often giving them internet access. Your phone can use Wi-Fi at home without using mobile data for that connection. Wi-Fi and the internet are not the same thing.
Technical Explanation
Wi-Fi is a family of IEEE 802.11 wireless networking standards that connects devices to a local network through an access point or router. Internet access requires a separate upstream connection.
Business Use Case
A café offers customer Wi-Fi so visitors can browse online while seated.
Real-Life Example
At home, you connect your tablet to your router’s Wi-Fi network to watch a video.