PIN pad is the pad in which the Personal Identification Number is typed in (Numeric keypad) and the chip readers is the one that allows the data on the chip to be read. Its used in cash withdrawals as its the safest method.
The card is is inserted inside a chip and pin reader where the costumer will write the PIN using the numeric keypad then the PIN is compared with the one stored on the chip if correct and valid, it would connect to the bank and then it would be checked whether the costumer's bank account has sufficient funds or not if yes the transaction is carried , else the card is rejected
I Hope this is helpful....Gd luck 2 all of us
PRAY 4 ME I HAVE MA ARABIC EXAM NW