Despite the name, the ( # ) has nothing to do with pounds of currency or body weight. The name comes from telephone history—way back when, # was called “octothorpe” (yes, really), and “pound” referred to the symbol’s use in weights (lb → ℔ → #). On debit cards, it’s purely a digital command button.
When you press the pound key, it serves as a confirmation or verification step. This helps to: what is a pound key on a debit card
When you see the key on a debit card reader, it generally serves these purposes: Despite the name, the ( # ) has
When you insert your debit card to pay or check your balance, you are essentially interacting with a computer system via a numeric keypad. These systems are often legacy systems built on telephone technology. When you press the pound key, it serves
Regardless of what you call it, on a debit card terminal, this button serves a specific functional purpose related to data processing.