Debian is a type of computer operating system that helps make your computer work. It's like how you have a brain that helps your body do things, Debian helps your computer do things.
Imagine you have a bunch of toys scattered around your room, and you want to put them away. Debian is like the box you use to store all of them neatly in one place. It helps organize all the different programs and files on your computer so that you can easily use them.
But Debian isn't just any old box! It's a special type of box that's been made by a group of really smart people who work really hard to make sure it does its job really well. They are called the Debian community, and they make sure that Debian is the best it can be for people who want to use it on their computers.
One of the coolest things about Debian is that it's free! That means that anyone can use it without having to pay anything. Just like when you share your toys with your friends, the people who make Debian want to share it with everyone so that more people can use it.
In summary, Debian is a type of computer operating system that helps you use your computer by organizing the programs and files on it. It's made by a group of smart people who work hard to make sure it's really good, and it's free for anyone to use. Think of it like a special box for your computer toys!