how do atm machines work

ATMs (Automated Teller Machines) work by securely connecting a user's bank account to a financial network. You insert your debit or credit card and enter your Personal Identification Number (PIN). The machine reads the card's chip or magnetic stripe and sends an encrypted request through a network to your bank's server. The server verifies your identity and confirms if you have sufficient funds. Once approved, the ATM dispenses the requested cash and records the transaction. This process allows for various services like cash withdrawals, deposits, and balance inquiries without visiting a bank branch.