what is the full form of pin

The full form of PIN is Personal Identification Number. A PIN is a password-protected code that a user generates and uses for authentication while attempting to enter a system. It is a numerical code used in many electronic financial transactions, providing additional account security. PINs are secret codes that users create and use to authenticate themselves while trying to access a system. PINs are used in various systems and networks, including mobile phones, laptops, desktops, and other devices and networks. However, PINs are most commonly used in online transactions such as debit cards, credit cards, and other online payments. PIN for ATM or other transaction cards is a protected validated code set by the user and used in a variety of electronic financial transactions. When the client attempts to use it, the code is used for validation and to make the entire transaction process run smoothly.