ACCOUNTS DATABASE
This is a database containing account numbers, balances and other account information. Data
is retrieved from the database when a customer requests a balance report or a cash withdrawal.
The database is updated after a withdrawal.
CARD READER
The Card Reader receives the customer's card and retrieves the PIN and account number stored
on it. This information is transmitted to the software system which enables the Customer
Keypad and initiates the PIN verification procedure. When business is completed the Card
Reader is instructed to return the card. If the customer enters an incorrect PIN, a fixed number
of retries is permitted, after which the Card Reader is instructed to confiscate the card.
CUSTOMER KEYPAD
The Customer Keypad allows a customer to enter a PIN number, select options and enter cash
values. The keypad is only enabled when a card is detected in the Card Reader.
CUSTOMER DISPLAY
The Customer Display presents messages, options and reports to the customer. The display is
active at all times.
PRINTOUT DISPENSER
This provides the customer with a printed balance or receipt. The Printout Dispenser reports to
the system if the paper level is low.
CASH DISPENSER
This assembles and delivers cash to the customer. The dispenser receives information about the
values and quantities of notes to dispense (1 x $20, 2 x $5, etc). The Cash Dispenser reports to
the system if the cash levels are low.