Okay kiddo, have you heard of a computer module before? It's basically a small part of a computer that does a specific job, like helping it remember things or controlling how it moves.
Now, sometimes computers need to do really advanced stuff that one module can't handle all by itself. That's where dual modules come in! Instead of just having one module, the computer has TWO that work together to get the job done.
It's like having two helpers instead of one - they can work together and tackle bigger tasks to make things happen faster and more efficiently. Dual modules can also help keep the computer running smoothly by dividing up the work evenly between them.
So basically, a dual module is just two computer modules that team up to do even cooler things than they could on their own. Pretty neat, huh?