Description of an information system that you have encountered, such as an automated teller machine (ATM). Use the concepts of input, processing, output, and feedback to describe the system's function and value.
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Description of an information system that you have encountered, such as an automated teller machine (ATM). Use the concepts of input, processing, output, and feedback to describe the system's function and value.
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Automated Teller Machine (ATM)
An automated teller machine (ATM) is a computerized telecommunications device that provides the customers of a financial institution with access to financial transactions in a public space without the need for a human clerk or bank teller. On most modern ATMs, the customer is identified by inserting a plastic ATM card with a magnetic stripe or a plastic smartcard with a chip, that contains a unique card number and some security information, such as an expiration date or CVC (CVV). Security is provided by the customer entering a personal identification number (PIN).
Using an ATM, customers can access their bank accounts in order to make cash withdrawals (or credit card cash advances) and check their account balances. Many ATMs also allow people to deposit cash or checks, transfer money between their bank accounts, pay bills, or purchase goods and services.
How Do ATMs Work?
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 (the person wanting the cash).
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, ...
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