What is the full meaning of Internet and WiFi

Internet-a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

Wifi-a wireless networking technology that allows devices such as computers (laptops and desktops), mobile devices (smart phones and wearables), and other equipment (printers and video cameras) to interface with the Internet. ... Internet connectivity occurs through a wireless router.

Explanation:

WiFi is a short name for Wireless Fidelity". ... To connect to a WiFI LAN, a computer must be equipped with a wireless network interface controller

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