http://www.com-tech.ubru.ac.th/~parkpien - PowerPoint PPT Presentation

Title: http://www.com-tech.ubru.ac.th/~parkpien


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??????????????????????????????
???????????? ???????? ???????????????????????????
? ???????? 08-58575919 http//www.com-tech.ubru.a
c.th/parkpien
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???????????????????????????????
?????????????? Input Unit
??????????? Output
????????????? Process
???????????????? Storage Device
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Input Unit
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Input Device ?????????????????????
??????????????????????????????????????????????????
??????????????????????????????????????????????????
???????????? ????????????????????????????????
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Types of Input Devices

• Typing Devices
• Pointing Devices
• Scanning Devices
• (Source-data Automation)
• Other Devices

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1) Typing Input Devices
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1) Typing Input Devices
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(No Transcript)
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Types of Typing Input Devices (Layout)

• QWERTY

• Devorak

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Comparing 2 Types of Keyboard
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Types of Typing Input Devices(????????????)

• Regular ????????????????
• Ergonomic ?????????????????????????????????

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Regular Keyboard





Invalid Password
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Ergonomic Keyboard
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(No Transcript)
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?????????????(Pointing Devices)

• ?????????????????????????????????????? Graphical
  User Interface software ???? Windows 95
• ???????????????????????? Cursor ???? Pointer

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Mechanical Mouse ???????????

• ??????????
• ???????
• ????????
• ?????????????

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Optical Mouse???????????????????????
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5 Buttons Mouse
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Cordless Mouse???????????
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Trackball (Upside down Mouse) ????????????????????
?????????? ???????????????????????????????????????
??????????????????
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Microsoft EasyBall
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Optical Trackball
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Pointing Stick??? trackball ?????????????????????
??????????????????????? ?????????????????????????
????????
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Trackpad ?????????? Trackball ???????????????????
??????????????????????????????
Peter Norton's Introduction to Computers
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Pointing Devices ??????????????????
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Joystick ???????????????????????????????
???????????????????????????????
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Game Pad ?????????????????????????????????????????
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Wheels
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Pointing Devices ??????????
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Head-Mounted Pointer ????????????????????????????
????????????????????????????????
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3) Scanning Devices - Scanners As Hardware -
Scanners As Software
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Scanners As Hardware
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Flatbed Scanner (??????????) ????????????????????
???????? ???????????????? ???????????????????????
?????????????????????????
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Flatbed Scanner
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Flatbed Scanner

• ??????????????????????????????
• ??????? ??? ???????????? Sheet fed scanner ??????
  ????????????? ?????
• ????? ??? ??????????????????????????

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Sheet fed Scanner (???????????????) ???????
???????????????????????????????????????????????
???????????????????????? ??????????????????????
??????????
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Sheet fed Scanner
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Portable Handheld Scanner (?????????)
?????????????????????????????????????????????
????????????????????????????????????????????????
???????????? ??????? ???????? ?????????????????
?????????????????
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Portable Handheld Scanner
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Portable Handhelp Scanner

• ???????
• ????????????????????????? ????????????????????????
  ????????????????????????????????? ????????????
• ???????????????????????????????????????
  ????????????????? ????????????????????????????????
  ?????

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OMR Reader ???????????????????????????????????????
?????????????
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Photo Scanner ??????????????????????????
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Film Slide Scanner ?????????????????
????????????????
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Handheld Barcode Reader ??????????????? barcode
???????????????????????
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Barcode Reader
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Scanner As Software
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Scanning Software

• Graphics ?????????????????????
• Bar Code Recognition ???????????????????????
  (barcode) ????????????????????????? (Barcode
  Reader) ?????????????????????????
  ???????????????????????????????????????????? ?
  ????????????

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Barcode Reader
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Scanning Software

• Optical Mark Recognition (OMR) ???????????????????
  ??????????????? ???? ?????????????????????????????
  ???
• Optical Characteristic Recognition (OCR)
  ???????????????????????

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Optical Mark Recognition (OMR)
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Scanning Software

• Magnetic Ink Characteristic Recognition (MICR)
  ???????????????????????????????????????????????
  ???? ????????????????????????????
• Handwritten Recognition ?????????? ???????????????

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Magnetic Ink on a Check
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MICR Reader
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Handwritten Recognition
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4) Other Kinds of Input Devices
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Video ???????????????????????????????????????
????????????????????????
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Video Digitizer
??????????????????????????????????????????????????
?????? ????????????????????
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Microphone (Input for Sound)
??????????????????????????????????????
Digital Audio Output electrical signals (ex.
11100011) to computer
Analog Signals are Digitized
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Wireless Pen Graphic Tablet
????????????????????????????????????????????
Tablet ???????????????????????????????????????????
??? ???
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LCD Pen Tablet
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Other Input Devices Motion Tracking
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Motion Tracking in Action
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Applications of Motion Tracking
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Applications of Motion Tracking
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Output Unit
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Output Device ?????????????????????????????
?????????????????????????????????????????????
??????????????????????????????????????????????????
????????????? ?????????????????????????????
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?????????????????????? (Output)

• Soft Copy - ??????????/ ?????????????????
  ?????????????????? (Temporary) ????
  ??????????????????????
• Hard Copy - ??????????/ ??????????????????? ????
  ????????????????????????????

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Soft Copy Output
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????????? Monitor
Cathode Ray Tube (CRT) Flat-Panel Display
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???????????????????? CRT

• ?????????????????????????????????
  ??????????????????????
• ???????????? pixel (????????????) pixel
  (picture element) ????????????????????????????
  ???????????????????????? ?????????
  ?????????????????????????????? 1 pixel
  ????????????????????????????????????
• ???????????????????????? 3 ?????? ???????? 3 ??
  ??? ????? ??????? ????????????

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(No Transcript)
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?????????????? Monitor

• Size
• Resolution
• Refresh Rate
• Dot Pitch

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??????? Monitor

• ?????????????????????????????????????????????????
  ??????????? ??? ??????????????????? (diagonally)
• ??????????????????? ?????????????????????
  ???????????????????????

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The diagonal size (often 15)
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Resolution (???????????????????)

• ???????? pixels ??????????????????????
  ???????????????????????????????? (dpi, dot per
  inche)
• ???????????? 640 x 480 (640 pixels ?????? 480
  pixels ???????)

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Resolution (???)

• ?????????? Resolution
• 640 x 480 (Video Graphics Array -VGA)
• 800 x 600 1024 x 768 (Super VGA-SVGA)
• ?????????????????????????????????
  ????????????????????????? ????????????????????

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Resolution (???)
800600
1024768
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Refresh Rate

• ??????????????????????????????????????????????????
  1 ?????? ????????????????????????????????????????
  ????????????????????????
• Refresh rate ???????????? Hertz (Hz) ???? cycle
  per second

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Refresh Rate (???)

• Refresh rate ???????????????????? flicker
  ??????????????????????????????
• flicker ???????????????????????? Refresh
  rate ???
• 72 Hz ??????????? ??????????

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Fast scanning Quick refresh (less flicker)
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Dot Pitch

• Dot pitch ??????????????? pixels.
• ?????? 3 ???????????????? ????????????? blur
• ?????????????????? dot pitch ??????? 0.28
  millimeter.

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Fine dot pitch Crisp displays
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R B
B G
R G
Phosphor Dot Color Mixing

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Flat Monitor
Liquid Crystal Display (LCD) ????????? TV
????????????? - Passive Metrix LCD - Active
Metrix LCD
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Flat Monitor

• Passive Metrix LCD ???????????????????????????????
  ????????? ?????
• Active Metrix LCD ???????????????????? ??????????
  ???????? ?????????????????????

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Video Projector
?????????????????????????
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Speakers ???? Output Device ???????????
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Hard Copy Output
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Printers

• ?????????? Output ????????????? ????
  ??????????????
• ???????????????????????????? Dot Per Inch (DPI)
• ?????????????????????????????? - Line Per
  Minute (LPM) ???? - Page Per Minute (PPM)

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Types of Printers

• Impact Printer
• Non-Impact Printer

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???????????? Impact Printer

• ????????????????????????????????
  (????????)????????????
• ????????????????????????
• ?????????????????????????? Carbon

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Line Printer
- ??????????? - ??????? - ????????????????????????
???????????
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Dot-Matrix Printer
- ??????? - ???????????????? ??????????????
???????????????
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Non-Impact Printer

• ??????????????????????????????????????????????????
  ?????????????????? (??????????????????????????????
  ?)

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Inkjet Printer
???????????????????????????
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Inkjet Printer
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Inside Inkjet Printer
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Laser Printer
?????????????????????????????????????????????
??????????????????
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Inside Laser Printer
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Thermal Transfer (Solid Ink) Printer
????????????????????????????
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Plotter
??????????????????????????????????????????????????
??????????? ???? ?????????? ???????? ??????
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Special Purpose Printers
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Barcode Printer
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Braille Printer
???????????????????????????????????????????????
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Multi-Purpose Devices
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A Touch Screen Monitor

• ????????????????? Input Output devices

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Digital Camera
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E-Postage
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???????????

1. ??????????????????????????? (Input Device)
   ??????????

• Typing Devices
• Pointing Devices
• Scanning Devices
• (Source-data Automation)
• Other Devices

110
???????????
2. ????????????????????????????????????????????
????????

• Regular ????????????????
• Ergonomic ?????????????????????????????????

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???????????
3. ?????????? Flatbed Scanner ???????????????????
????????????????????????????? ??????????
4. OMR Reader ?????????????????
?????????????????????????????????????????
????????????
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???????????
5. ?????????????????????????????????????

• SIZE ????
• RESOLUTION ???????????????????
• REFRESH RATE ?????????????????
• DOT PITCH ?????????????????????

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???????????
6. ???????????????????

• RESOLUTION
• dpi (dot per inch)
• REFRESH RATE
• Hertz (Hz) ???? Cycle per Second

114
???????????
6. Printer ????????? ????????

• Impact Printer
• Non-Impact Printer