1. Lockley155 CHAPTER Input and Output

2. 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

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

4. Lockley4 Data Entry  Keyboard entry  Direct entry

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

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

7. Lockley7 Keyboard Entry  Ctrl, Alt and Shift keys

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

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

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

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

12. Lockley12 Pen-based computer: recording inventory

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

14. Lockley14 Fax Machines  Fax machine  Fax modem cards

15. Lockley15 Bar-Code Readers  Photoelectric scanners  Bar code

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

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

18. Lockley18 Voice Recognition Systems  Continuous speech  Discrete-word

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

20. Lockley20 Cables Serial mouse, modem, keyboard Video monitor

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

22. Lockley22 Printers  Ink-jet Printer  Laser Printer

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

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

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

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

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

28. Lockley28