atm vsThis page compares ATM and TDM and mentions the difference between ATM and TDM. As we know, ATM stands for Asynchronous Transfer Mode, and TDM stands for Time DivisionDebit Card A Debit Card is a multi-functional card, and you can use it for on and off transactions and for withdrawing cash from ATMs. It is the bgest ATM card vs debit card difference. You can also use debit cards for internet