A.T.M. Card is derived from the latin, "Alio Terra Magno Credo", which literally translates, I am smarter than you. The name was later attributed to a cash dispensing machine because no one understands latin, not even the Romans.
The dream of the ATM was brought to fruition in 1968 by Don Wetzel, but it wasn't until 1972 that the ATM card was proposed by one Oscar Wilde. Wilde would later say that he first imagined it one day when he had arrived at the bank at 5:01pm and needed more laudanum for an early dinner party. Eventually, the ATM card was inveted when people became frustrated trying to break into ATM machines when banks weren't open for robbing.