Sunday, 24 November 2013


Full form is automated teller machine.ATM's are very basic computer(or data terminal).It have 2 input devices keypad,card reader and 4 output devices cash dispenser,receipt printer,speaker and screen.
  • Firstly insert a card into the card reader.The card reader reads information encoded on the magnetic strip on back of the card.
  • The card black strip is encoded with a unique card number,expiry date or CVV and a PIN.
  • Response to the prompts on the screen.The ATM asks the PIN.The authentication to access account fund is provided by entering the PIN(personal identification number).
  • ATM communicates with bank and within a minute we get money and a receipt from the bank account balance.

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