Video narration
How can a thin card produce cash if it doesn’t hold money? Think of it like a house key: it proves you’re allowed in, but the house holds what’s inside. The card identifies your bank account. You enter your PIN and amount, and the ATM sends the request to the bank. The bank checks details, funds, and withdrawal rules. It approves or refuses. If approved, the ATM releases cash and updates your account. So it’s a key, not a wallet.