This document provides information about automated teller machines (ATMs) including what an ATM is, the components of an ATM, how to use an ATM, and security issues. It states that an ATM is a computerized device that allows customers to access financial transactions without a human clerk. It describes the major components of an ATM including the card reader, host processor, keypad/touchpad, speaker, screen, receipt printer, cash dispenser, and their functions. It provides the steps to use an ATM, which include inserting a card, selecting a language, entering a PIN, choosing a transaction type and account, entering an amount, and receiving money. It also notes security risks like card

1. ■ Group Members
■ Name ID
• Shimmy, Tauhida Shabrin 16-31707-1
• Sajid, Abdullah Al 16-31718-1
• Samia Parvin 16-31712-1
• Mahin, S.M. Al 16-31701-1
• Tonmoy, Shoaib Azad 16-31837-1
Course : Digital Electronics
Teacher: Rethwan Faiz

2. What Is An ATM?
■ ATM stands for “Automated Teller Machine”.
■ ATM is a computerized telecommunications device that provides the customers of
a financial institution / bank with access to financial transactions in a public space
without the need for a human clerk or bank teller round the clock (24 hrs a day)

3. ATM Card
On most modern ATMs, the customer is identified by inserting a ATM
■ ATM card is a plastic card with a magnetic stripe or a plastic smartcard with a chip
■ It contains a unique card number and some security information.
■ Security is provided by the customer entering a personal identification number
(PIN)

4. Functions Of ATM
■ 24-hour access to cash
■ View Account Balances & Mini-statements
■ Order a Cheque Book / Account Statement
■ Transfer Funds between accounts
■ Refill your Prepaid card
■ Pay your utility bills
■ Deposit cash or cheques
■ Change your PIN
■ Learn about other products

5. Types of ATMs
■ On-Line Atms
■ Off -line Atms
■ On- site ATMs
■ Off-Site Atms
■ Mobile Atms
■ Biometric ATMs
■ Talking Atms
■ ATMs For Blinds
■ Drive In Atms

23. COMPONENTS OF
AUTOMATED TELLER
MACHINE

25. CARD READER
■ If there will be no card reader, then ATM card can not be read so no transaction can
be done by machine.
■ ATM card is required to swipe through this card reader slot. After swiping card it
captures the account information through magnetic stripe of ATM.
■ After retrieving the correct information of your account, card reader send this
information to the host processor for further process.

26. HOSR PROCESSOR
■ Host processor is the heart of ATM machine.
■ It contacts the bank server and retrieves your account details such as available
balance, previous transactions, PIN etc
■ It verifies your PIN number and if it matches with the provided PIN number from
the bank server, you are allowed to make the transaction.
■ To take your PIN and other requests form user, there will be a keypad or touch pad.

27. KEYPAD/TOUCHPAD
■ Key pad or touch pad is responsible for taking input from the user.
■ On this pad, numbers and few other keys such as Clear, OK etc., will be placed.
■ Key pad transfers your inputted data to host controller to process the request

28. SPEAKER
■ Speaker is placed in ATM machine which is responsible for audio alerts.
■ When you press any key, this speaker confirm the pressing of key by producing a
beep sound alert.
■ It assures you that the key pad is working

29. CRT OR LCD SCREEN
■ Another major integral part of the ATM machine is its Cathode Ray Tube (CRT) or
Liquid Crystal Diode ( LCD) screen.
■ CRT or LCD screen is responsible for visual display of your transactions.
■ It is responsible for displaying your name, entered amount, account number etc.
■ Without CRT or LCD display screen, the transactions from ATM machine would
have become more difficult.

30. RECEIPT PRINTER
■ Receipt printer is responsible for the printing of your transactions receipt.
■ It will print whether the transaction is successful or not.
■ It contains the important information in the form of fixed codes by which we can
assess the transaction status and its reason of failure.
■ SO receipt printer is a vital part of automated teller machine.

31. CASH DISPENSER
■ The most important part of automated teller machine is its cash dispenser.
■ The cash dispenser is responsible for giving out the correct amount of cash you
have requested for.
■ So after getting instruction from host controller to pay the money, cash dispenser
will count the money and dispenses the money out of it.

32. ATM & it’s parts
■ CPU
■ Magnetic or chip card reader
■ PIN pad (similar in layout to a touch tone or calculator keypad)
■ Display
■ Function key buttons
■ Record printer
■ Vault
■ Sensors and indicators

33. STEPS of Using ATM:
1. INSERT CARD

35. 2. SELECT your Language

36. 3. Enter your PIN

38. 4. Transaction Type

39. 5. ACCOUNT type

40. 6. Enter Amount

42. 7. Take your MONEY

43. ATM card Skimmers:
1. Collecting Your Account Information

44. 2. Stealing your PIN

47. THANK YOU

48. QUESTION?