Okay kiddo, so imagine you have a bunch of toys like your dolls, blocks, or cars. You want to keep them safe and organized, so you decide to have a special place just for them. This special place is like a big toy chest, but it's called a server.
Now let's pretend that your parents have a lot of work to do on their computers, just like how you have homework to do for school. But they don't want to keep all their important documents and files on their own computers because they might get lost or stolen. So they decide to put them in the server toy chest.
Microsoft servers are like really big and super special server toy chests that only grown-ups use for their work stuff. They can hold a lot more files and documents than your toy chest, and they have special ways to keep them safe so that no bad guys can get to them.
The people at Microsoft made these servers so that businesses and schools can keep all their important information in one place, and also share it with other people who need it. It's like everyone can use the same toy chest to play with all their toys together and help each other out.
So that's basically what Microsoft servers are all about - they're big, super special toy chests for grown-ups to keep their important work stuff safe and organized!