- visit ATM
- insert your ATM Card
- key in your PIN number - the ATM machine will validate the PIN you entered with the PIN maintained with the bank records
- select the service you want (withdrawal, balance inquiry etc) - the ATM machine will check if you have enough funds in your account to do the transaction selected.
- collect cash or receipt
- take out card
The ATM can count money and dispense money accordingly because it has proper software programmed into it.