Sideways address space

Okay kiddo, let me try to explain a little thing called "sideways address space". You know how your house has an address which tells people where to find you? Well, computers have addresses too, but they're a little bit different.

In a computer, every piece of information has an address so that the computer can find it quickly when it needs to. Think of it like a giant filing cabinet where every piece of paper has a label that tells you exactly where it is.

Now, sometimes the computer needs to store a LOT of information. So much information that it can't fit it all in one place. That's where sideways address space comes in.

Instead of putting all the information in one place, the computer puts some of it in one place and some of it in another place. The computer still needs to be able to find all the information quickly, so it uses a special kind of address called a "sideways address" to keep track of where everything is.

It's kind of like if you had a really big toy box and you couldn't fit all your toys in it. So you put some of them in another box and you put a label on the big toy box that tells you where to find the other box.

So, sideways address space is just a fancy way of saying that the computer is using more than one place to store information and it's using special addresses to keep track of everything. Does that make sense, little one?