How ATMs Work machine card's?

Note: many members still asking me several questions about ATMs. Read carefully

Introduction:

The automated teller machine (ATM) is an automatic banking machine (ABM) which allows customer to complete basic transactions without any help of bank representatives. There are two types of automated teller machine (ATMs). The basic one allows the customer to only draw cash and receive a report of the account balance. Another one is a more complex machine which accepts the deposit, provides credit card payment facilities and reports account information.

It is an electronic device which is used by only bank customers to process account transactions. The users access their account through special type of plastic card that is encoded with user information on a magnetic strip. The strip contains an identification code that is transmitted to the bank’s central computer by modem. The users insert the card into ATMs to access the account and process their account transactions. The automated teller machine was invented by john shepherd-Barron in year of 1960.

Automated Telling Machine Block Diagram:

The automated teller machine consists of mainly two input devices and four output devices that are;

Input Devices:

      Card reader

      Keypad

Output Devices:

Speaker

Display Screen

Receipt Printer

Cash Depositor

Input Devices:

Card Reader:

The card reader is an input device that reads data from a card .The card reader is part of the identification of your particular account number and the magnetic strip on the back side of the ATM card is used for connection with the card reader. The card is swiped or pressed on the card reader which captures your account information i.e. the data from the card is passed on the host processor (server). The host processor thus uses this data to get the information from the card holders.

Keypad:

The card is recognized after the machine asks further details like your personal identification number, withdrawal and your balance enquiry Each card has a unique PIN number so that there is little chance for some else to withdraw money from your account. There are separate laws to protect the PIN code while sending it to host processor. The PIN number is mostly sent in encrypted from. The key board contains 48 keys and is interfaced to the processor.

Output Devices:

Speaker:

The speaker provides the audio feedback when the particular key is pressed.

Display Screen:

The display screen displays the transaction information. Each steps of withdrawal is shown by the display screen. A CRT screen or LCD screen is used by most of ATMs.

Receipt Printer:

The receipt printer print all the details recording your withdrawal, date and time and the amount of withdrawn and also shows balance of your account in the receipt.

Cash Dispenser:

The cash dispenser is a heart of the ATM. This is a central system of the ATM machine from where the required money is obtained. From this portion the user can collect the money. The duty of the cash dispenser is to count each bill and give the required amount. If in some cases the money is folded, it will be moved another section and becomes the reject bit. All these actions are carried out by high precision sensors. A complete record of each transaction is kept by the ATM machine with help of an RTC device.

This Was The full basic introduction about ATM, Keep in mind on the next lessons which will be covering ATM Networking, Security and the rest of information.

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