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CGS 1000

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(MICR) reader? Other Input Devices. Can read text printed with magnetized ink. Banking industry almost exclusively uses MICR for check. processing ... – PowerPoint PPT presentation

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Title: CGS 1000


1
CGS 1000
  • Introduction to Computers and Technology
  • Fall 2006

2
Topics
  • Quiz
  • Chapter 5
  • Class Activity Ex 73 to Ex 88

3
Topics Covered
  • Chapter 5 Objectives
  • Defined Input
  • Discussed about
  • Keyboard
  • Mouse
  • Voice Input
  • Touch Screen
  • Voice input
  • Digital Cameras

4
Chapter 5Input and Output
5
Other Input Devices
  • What is an optical reader?
  • Device that uses light source to read characters,
    marks, and codes and then converts them into
    digital data
  • Optical character recognition (OCR) reads
    characters in OCR font
  • Optical mark recognition (OMR) reads hand-drawn
    pencil marks, such as small circles
  • Bar code reader

6
Other Input Devices
  • What is an RFID reader?
  • Reads information on the tag via radio waves
  • Can be handheld devices or mounted in a
    stationary object

7
Other Input Devices
  • What is a magnetic stripe card reader?
  • Reads the magnetic stripe on the back of a credit
    card
  • Exposure to a magnetic field can erase the
    contents of a cards magnetic stripe

8
Other Input Devices
What is a magnetic-ink character recognition
(MICR) reader?
  • Can read text printed with magnetized ink
  • Banking industry almost exclusively uses MICR for
    check processing

9
Other Input Devices
  • What is a point of sale (POS) terminal?
  • Records purchases, processes credit or debit
    cards, and updates inventory

10
Other Input Devices
  • What is an automated teller machine (ATM)?
  • Self-service banking machine that connects to a
    host computer through a network

11
Other Input Devices
  • What is biometrics?
  • Authenticates persons identity by verifying a
    personal characteristic
  • Fingerprint scanner captures curves and
    indentations of fingerprint

12
Other Input Devices
  • What are examples of biometric technology?
  • Voice verification system compares live speech
    with stored voice pattern
  • Signature verification system recognizes shape
    of signature
  • Iris recognition system reads patterns in blood
    vessels in back of eye
  • Biometric data is sometimes stored on smart card,
    which stores personal data on microprocessor
    embedded in card

13
What is Output?
  • What is output?
  • Data that has been processed into a useful
    form,called information
  • Output device is any hardware component that can
    convey information to one or more people

14
Display Devices
  • What is a display device?
  • Output device that visually conveys information
  • Information on display device sometimes called
    soft copy
  • Monitor houses display device as separate
    peripheral

15
Display Devices
  • What is an LCD monitor?
  • Uses liquid crystal display
  • Have a small footprint
  • Mobile devices that contain LCD displays include
  • Notebook computer, Tablet PC, PDA, and Smart Phone

16
Display Devices
  • What is a plasma monitor?
  • Displays image by applying voltage to layer of
    gas
  • Larger screen size and higher display quality
    than LCD, but are more expensive

17
Display Devices
  • What is a CRT monitor?
  • Contains cathode-ray tube (CRT)
  • Common sizes are 15, 17, 19, 21, and 22 inches
  • Viewable size is diagonal measurement of actual
    viewing area

18
Display Devices
  • What determines the quality of a CRT monitor?
  • Screen resolution
  • Text created with a smaller dot pitch is
    easierto read
  • Refresh rate is speed at which monitor
    redrawsimages on screen

19
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