Lockley155 CHAPTER Input and Output. Lockley2 Competencies 1. Keyboards 2. Direct-entry input devices 3. Terminals 4. Voice recognition systems 5. Monitors.

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Presentation transcript:

Lockley155 CHAPTER Input and Output

Lockley2 Competencies 1. Keyboards 2. Direct-entry input devices 3. Terminals 4. Voice recognition systems 5. Monitors and their standards 6. Printers and plotters 7. Voice-output devices

Lockley3 Overview  Input and output  Binary language  Output devices do the reverse

Lockley4 Data Entry  Keyboard entry  Direct entry

Lockley5 Data Entry  Point-of-sale (POS)  keyboard  bar scanning  Wand reader  Platform scanner A Point-of-sale transaction

Lockley6 Traditional keyboard Escape key Navigation keys Function keys SpacebarSpacebar Numeric keypad Windows key

Lockley7 Keyboard Entry  Ctrl, Alt and Shift keys

Lockley8 Keyboard Entry  Terminals  Dumb terminal  Intelligent terminal  Network terminal  Internet terminal

Lockley9 Direct Entry  Machine-readable format  Three categories  Pointing devices  Scanning devices  Voice-input devices

Lockley10 Pointing Devices  Mouse  Trackball  Touch-surface  Touch screen Traditional keyboard

Lockley11 Pointing Devices  Light pen  Digitizer  Digital camera  Digital notebook

Lockley12 Pen-based computer: recording inventory

Lockley13 Scanning Devices  Image scanner  Fax machine  Bar-code readers

Lockley14 Fax Machines  Fax machine  Fax modem cards

Lockley15 Bar-Code Readers  Photoelectric scanners  Bar code

Lockley16 Scanning Devices  Magnetic-ink character recognition (MICR)  Optical-character recognition (OCR)  Optical-mark recognition (OMR)

Lockley17 Voice-Input Devices  Convert speech into digital code  Microphone  Voice recognition systems

Lockley18 Voice Recognition Systems  Continuous speech  Discrete-word

Lockley19 Monitor Standards  VGA  Super VGA or SVGA  XGA

Lockley20 Cables Serial mouse, modem, keyboard Video monitor

Lockley21 Monitors  CRTs  Flat-Panel or LCD  Passive-matrix or dual-scan  Active-matrix  Pixel size

Lockley22 Printers  Ink-jet Printer  Laser Printer

Lockley23 Printers  Thermal Printer  Dot-matrix  Chain printer

Lockley24 Plotters  Pen Plotter  Ink-Jet Plotter  Electrostatic Plotter  Direct Imaging Plotter

Lockley25 Plotters  Direct Imaging Plotter  Electrically heated pins create images on heat-sensitive paper  Expensive paper required  Two-color output only

Lockley26 Voice-Output Devices  Prerecorded vocalized sounds  A sound card and a speaker system

Lockley27 A Look into the Future  Digital TV  Federal Communications Commission  PC/TV

Lockley28

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