A personal identification number is a numeric passcode used in the process of authenticating a user accessing a system.
When using this credit card terminal, a VISA cardholder swipes or inserts their credit card, and enters their PIN on the keypad.
Passbook
Videos
A passbook or bankbook is a paper book used to record bank or building society transactions on a deposit account.
The Post Office Savings Bank introduced passbooks to rural 19th-century Britain.
Customers queuing to bank counter in Finland with passbooks (1943)
Saffron Building Society passbook
German Postsparbuch, cover