Okay kiddo, imagine you have a toy box full of toys. Each toy has its own special spot in the toy box so you know where to find it when you want to play with it.
Now, let's say you want to talk to your friend on the phone and tell them which toy you are playing with. You would need to tell them the name of the toy and also where it is in the toy box.
A base address is kind of like the special spot in the toy box where a toy belongs. When a computer program needs to find information that is stored in the computer's memory, it needs to know the base address of that information.
Just like you need to know where a toy is in the toy box to tell your friend which toy you are playing with, a computer program needs to know the base address of the information it is looking for in order to access it.
So, a base address is like a special spot in a toy box where a toy belongs, and it helps computer programs know where to find the information they need in the computer's memory.