Physical data model

A physical data model is like a big puzzle that shows how a computer stores and organizes information. Think of it like a big toy box with lots of different compartments for all your toys. Just like how you have different sections in your box for your Lego, stuffed animals, and cars, a physical data model has different sections for different kinds of information, like names, numbers, and addresses.

When a computer needs to store information like your name or your favorite color, it does it in a special way so that it can find it quickly and easily later. The physical data model shows exactly how the computer does this by laying out all the different compartments and how they connect to each other.

So just like how you can quickly find your favorite toy because you know where it is in your box, a computer can quickly find information because it knows exactly where it's stored in the physical data model. And just like how you can rearrange your toy box to make everything fit better, computer programmers can change the physical data model to make it work better for their specific needs.