Automated Teller Machine
An Automated Teller Machine (ATM) is an electronic banking device that enables customers to perform financial transactions, such as cash withdrawals, deposits, and balance inquiries, without the need for a human teller. It connects to a bank's network to process transactions securely and typically includes hardware components like a card reader, keypad, display screen, and cash dispenser. ATMs are widely used in retail banking to provide 24/7 access to basic banking services.
Developers should learn about ATMs when working on financial technology (fintech) projects, banking software, or hardware integration systems that involve secure transaction processing. This knowledge is crucial for building or maintaining ATM software, ensuring compliance with financial regulations like PCI DSS, and developing applications that interface with banking networks for cash management or customer service enhancements. It's also relevant for cybersecurity roles focused on protecting financial infrastructure from fraud and attacks.