Debit Notes - What are the difference between Debit notes and credit notes ? please give me answer with simple examples?

What are the difference between Debit notes and credit notes ? please give me answer with simple examples?

Debit notes tell you the money is going out, credit, it's coming in.
If what you mind is when you pay with you ATM card, the difference is when you pay by using the debit is because what you just buy is paid right away by using the money do you have on the bank. but if you paid with the card using it like credit card the price of the product is paid and after some time the money is taken from the bank account.