To use an automated teller machine (ATM), a customer must enter his or her four-digit Personal Identification Number (PIN). How many different PINs are possible?

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SOLVED: Design the software for an automated teller machine system to support a computerized banking network, including both human cashiers and automated teller machines (ATMs) to be shared by a consortium of banks. Each bank provides its own computer to maintain its own accounts and processes transactions against them. Cashier stations are owned by the individual banks and communicate directly with their own bank's computers. Human cashiers enter account and transaction data. Automatic teller m

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