What is an automated teller machine? An Automated Teller Machine (ATM) is an electronic device that allows individuals to perform banking transactions such as deposits, withdrawals, and balance inquiries without having to visit a physical bank branch or interact with a bank teller. ATMs are commonly found in public spaces such as malls, airports, and banks. To use an ATM, a customer inserts a debit or credit card into the machine, enters their personal identification number (PIN), and selects the desired transaction. Depending on the ATM’s capabilities, customers can also transfer funds between accounts, pay bills, or purchase prepaid phone cards. Some ATMs also accept cash and check deposits, although this functionality may be limited to certain banks or regions. ATMs provide a convenient way for people to access their money or conduct financial transactions outside of traditional banking hours or locations. They have become an essential part of modern banking, allowing customers to manage their finances on their own terms.