AUTOMATED TELLER MACHINE

AUTOMATED TELLER MACHINE (ATM)

ABSTRACT
In simple words, an ATM can be described as a m/c which dispenses money on reading information from a card which is inserted into the machine. ATMs can now be seen at many places.This seminar focuses on the working of an ATM. That is what happens since the card is inserted & till the money is received is explained in detail. Other features like parts of an ATM , security of an ATM are also covered.
An ATM is simply a data terminal with two input and four output devices. Like any other data terminal, the ATM has to connect to, and communicate through, a host processor.
The host processor is analogous to an Internet Service Provider (ISP) in that it is the gateway through which all the various ATM networks become available to the cardholder .
Most host processors can support either leased-line or dial-up machines.
Leased-line machines connect directly to the host processor through a four-wire, point-to-point, dedicated telephone line.
Dial-up ATMs connect to the host processor through a normal phone line or through an Internet service provider.
Leased-line ATMs are preferred for very high-volume locations because of their thru-put capability, and dial-up ATMs are preferred where cost is a greater factor than thru-put.
Leased-line machines commonly use a monochrome or color CRT (cathode ray tube) display.
Dial-up machines commonly use a monochrome or color LCD.
The host processor may be owned by a bank or financial institution, or it may be owned by an independent service provider. Bank-owned processors normally support only bank-owned machines, whereas the independent processors support merchant-owned machines.