ATM is a computerized device that enables the clients of a financial institution to perform financial transactions without need of a cashier , clerk, or bank teller .it is also called cash machines. ATM is identify the customer by inserting a plastic ATM card with a magnetic stripe. authentication is provided by the customers entering a personal identificaation number (PIN) . using ATM , customers can access their bank account in order to make cash withdrawals , check balances, nd purchase pre-paid mobile phone credit.
it came in to force in december , 1972 in the UK . ATM are placed not only inside or near the premises of bank, but lso in locations such as shopping centers , bus stations , railway stations , airport…etc.