Okay kiddo, so wireless network interface controller is something that helps your devices like phones, laptops, and tablets connect to the internet without any wires.
Let's imagine you have a toy car and you want to race it with your friends. You would need a remote controller to make it move, right? Similarly, the wireless network interface controller is like the remote controller for your device to connect to the internet.
When you want to connect to the internet using your device, the wireless network interface controller inside your device works by sending and receiving signals from a nearby Wi-Fi network like the way your toy car receives signals from the remote controller. This allows you to access the internet and do things like watching videos, playing games, or sending messages to your friends.
It's really cool because it lets you be free to move around without being stuck to a cable. Have you ever noticed that your parents' computer sometimes need a wire to connect to the internet and you have to sit in one place to use it? Well, with wireless network interface controller, you don’t need a wire anymore and you can move around while you are connected to the internet.
So that's wireless network interface controller for you!