When you need money from an ATM, you insert your credit or debit card and enter your PIN. Once the PIN and card are verified, you can choose actions like withdrawing cash, checking your balance, or transferring funds. After selecting the amount to withdraw, the ATM dispenses the money and provides a receipt. This process involves several steps and components within the ATM and beyond, ensuring secure and accurate transactions. An ATM is essentially a computer with a cash dispenser, connected to an ATM transaction processor via the internet or phone line. The transaction processor links the ATM to various ATM networks, which in turn connect to your bank. The main parts of an ATM include the mainboard, card reader, display screen, keypad, cash cassette, cash dispenser, printer, power supply, I/O board, and modem. Each part plays a crucial role in processing transactions and dispensing cash. The transaction process starts when you insert your card into the card reader. The mainboard then prompts you to enter your PIN and select the transaction type. This information, along with a unique EMV transaction code, is sent to the processor via the I/O board and modem. The processor routes the transaction through ATM networks to your bank for approval. If approved, the bank debits your account, and the ATM dispenses the cash. The cash dispenser ensures each bill is correct, and a receipt is printed for the transaction.
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Understanding How ATMs Work

When you need money from an ATM, you insert your credit or debit card and enter your PIN. Once the PIN and card are verified, you can choose actions like withdrawing cash, checking your balance, or transferring funds. After selecting the amount to withdraw, the ATM dispenses the money and provides a receipt. This process involves several steps and components within the ATM and beyond, ensuring secure and accurate transactions.

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