A global filesystem is like a giant toy box that all your friends can play with at once. Imagine you have lots of toys, but they're all scattered around your house. You want to be able to share them with your friends, but it's hard for them to play with your toys if they're in different places.
So, you decide to organize your toys into one big box that all your friends can access at the same time. This way, everyone can play with all the toys together! That's basically what a global filesystem is.
A global filesystem is a special type of computer storage system where all the files are stored in one central location. This makes it easy for lots of people to use the same files at the same time. Just like how everyone can play with the toys in the toy box together!
But, just like when you're sharing toys with your friends, you need to make sure you don't break anything. In a global filesystem, everyone has to follow certain rules to make sure they don't accidentally delete or overwrite someone else's files.
Luckily, computers are really good at following rules! And, with a global filesystem, everyone can access and work on the same files at the same time, without making a mess or getting in each other's way.