This document provides a summary of the history and development of automated teller machines (ATMs). It discusses how the first ATM was introduced in 1967 in Enfield, UK by Barclays Bank. Key developments included the introduction of magnetic stripe cards to identify customers in the late 1960s, and the addition of personal identification numbers for security in the late 1960s. By the early 1970s, ATMs were being widely adopted in the UK and US, allowing customers to access their bank accounts to withdraw cash, check balances, and conduct other transactions without a bank teller. The document provides further details on ATM security features, functions, and global usage.