1. 5 55 CHAPTER Input and Output

2. 5 © The McGraw-Hill Companies, Inc. 2002 Objectives Variety of input devices Voice recognition Variety of output devices Multifunctional devices Telephony Type of terminals

3. 5 © The McGraw-Hill Companies, Inc. 2002 Input Keyboard entry Direct entry

4. 5 © The McGraw-Hill Companies, Inc. 2002 Direct Entry Pointing devices Scanning devices Voice-input devices Traditional keyboard

5. 5 © The McGraw-Hill Companies, Inc. 2002 Pointing Devices Mouse Trackball Touch-surface Touch screen Light pen Digitizer Digital camera Digital notebook

6. 5 © The McGraw-Hill Companies, Inc. 2002 Scanning Devices Image scanner Fax machine Bar-code readers

7. 5 © The McGraw-Hill Companies, Inc. 2002 Others Magnetic-ink character recognition (MICR) Optical-character recognition (OCR) Optical-mark recognition (OMR) 1 5 3

8. 5 © The McGraw-Hill Companies, Inc. 2002 Voice-Input Devices Microphone Sound card Special software Discrete and Continuous

9. 5 © The McGraw-Hill Companies, Inc. 2002 Output Devices Monitor Printers Plotters Voice

10. 5 © The McGraw-Hill Companies, Inc. 2002 Monitor Standards SVGA XGA SXGA UXGA

11. 5 © The McGraw-Hill Companies, Inc. 2002 Monitor Types CRTs Flat-Panel or LCD eBook readers Data projectors hdtv

12. 5 © The McGraw-Hill Companies, Inc. 2002 Printers Ink-jet Printer Laser Printer Thermal Printer Dot matrix Chain printer Plotters

13. 5 © The McGraw-Hill Companies, Inc. 2002 Audio Output Devices Easy and common Requires –Sound card –Speaker system

14. 5 © The McGraw-Hill Companies, Inc. 2002 Telephony Uses Internet rather than traditional Requires –Internet telephone –Internet –Special service provider

15. 5 © The McGraw-Hill Companies, Inc. 2002 Terminals Dumb terminal Intelligent terminal Network terminal Internet terminal

16. 5 © The McGraw-Hill Companies, Inc. 2002 A Look into the Future Combination of TV and Computer Web TV Broadcast Technology

17. 5 © The McGraw-Hill Companies, Inc. 2002 Questions / Comments Thank U