An automated teller machine (ATM, American, British, Australian, Malaysian, South African English, Singaporean, Indian, Maldivian, Hiberno, Philippine and Sri Lankan English), also known as an automated banking machine (ABM, Canadian English), cash machine, cashpoint, cashline, minibank, bankomat or colloquially hole in the wall (British) is an electronic telecommunications device that enables the customers of a financial institution to perform financial transactions, particularly cash withdrawal, without the need for a human cashier, clerk or bank teller.