1. GRAP 3175 Computer Applications for Drafting Unit III Hardware

2. Input / Output

3. Data Entry Concepts

4. Transcriptive vs. Source Data Entry Transcriptive Data Entry –Keyboard -- used to transcribe data Source Data Entry –Scanner -- puts data into machine-readable form –Advantage -- less chance of error

5. On-line / Off-line On-line –devices directly connected to CPU (keyboard) Off-line –devices not directly connected to CPU (bar code reader, survey equipment)

6. Updating Modes Batch processing –processing data after it has been collected Real-time processing –processing data instantly

7. Input Accuracy Verification –checking against a known source (manual) Validation –computer accepting only a certain range of data

8. Transcriptive Data Input Devices

9. Overview Input -- the process of entering data and translating it to a machine-readable form Peripheral Device -- any hardware that is connected to the main unit Cursor -- special character or symbol controlled by input device (underline or crosshairs)

10. Keyboards Cord / cordless Notebook Special Function

11. Mouse Electromechanical Optical Multi-button Cordless

12. Mouse

13. Trackball Space Ball Trackball

15. Joystick

16. Trackpoint

17. Touchpad

18. Touch-Sensitive Display

19. Light Pen

20. Digitizer Tablet

21. 3D Digitizer

22. Virtual Reality Head Position & Eye Trackers etc.

23. Speech-Recognition System Training Mode (speaker-dependent) Recognition Mode (speaker-independent)

24. Source-Data Input Devices

25. Magnetic Recognition Magnetic-ink Character Recognition (MICR) Magnetic Strips

27. Optical Recognition Optical-mark recognition (OMR) Optical-bar recognition (OBR) –Bar Code Optical-character recognition (OCR)

29. Digitized Imagery Image Processing

30. Scanners Desktop Scanners –Flatbed scanners –Sheetfed scanners –Overhead scanners –Hand-held scanners –Slide scanners Large Format Scanners

33. Vision-Input Systems

34. Video Digitizers Still Video Cameras Digital Cameras Video Capture Cards

36. Output Devices

37. Overview Output -- translating data from machine- readable form to human-readable form Hard Copy Soft Copy

38. Hard-Copy Output Devices

39. Printers Print Quality Impact Printers Nonimpact Printers

40. Impact Printers Overview Dot Matrix Printers Daisy-wheel Printers Line Printers

41. Nonimpact Printers Overview Inkjet Printers –HP 1220C Thermal-transfer Printers –CalComp Colorview –Fargo Pictura

43. Nonimpact Printers Laser Printers (page printers) –HP LaserJet 5 –Color Dye-sublimation –Fargo Pictura

45. Plotters

46. Pen Plotters Flatbed Microgrip –Calcomp 1042 –Bruning ZetaDraft 900 Plotter Pens –pens or pencils –single or multipen

50. Inkjet Plotters HP 750C Plus

51. Electrostatic

52. Thermal Imaging Calcomp -- DrawingMaster Plus

53. Electrophotographic

54. Film Recorders

55. Soft Copy Output Devices

56. Monitors Overview Resolution Pixel Monitor & Graphics Adapter Card CRT or Flat Panel

57. Cathode Ray Tube (CRT) Overview Non-interlace -- scans every line of the screen Refresh rate Dot pitch --.28 mm or less Monitor Size -- 5 to 30 in RGB or Composite

58. Graphics Adapter Card Overview Colors –4 bit -- 16 colors –8 bit -- 256 colors –16 bit -- 65,536 colors –24 bit -- 16.7 million colors –36 bit -- 68 billion colors

59. Graphics Adapter Card Overview VRAM –512k - 64 MB Resolution –640 x 480 –800 x 600 –1,024 x 768 –1,280 x 1,024 –etc.

60. Graphics Adapter Cards Monochrome CGA -- Color Graphics Adapter –320 x 200 - 4 –640 x 200 - 2 EGA -- Enhanced Graphics Adapter –640 x 350 - 16

61. Graphics Adapter Cards VGA -- Video Graphics Adapter –640 x 480 - 16 –320 x 200 - 256 SVGA -- Super Video Graphics Adapter –256k 800 x 600 - 16 –512k 1024 x 768 - 16 –512k 640 x 480 - 256 –1 MB 1024 x 768 - 256

62. Graphics Adapter Cards VESA VL, PCI, GUI buses AGP -- Accelerated Graphics Port (bus) ATI RAGE FURY, 2D/3D AGP –64 MB, 1920 x 1200, 16.7 M

63. Flat-panel Display LCD -- Liquid-crystal Display –Passive matrix –Active matrix –Example 14.1 XGA active matrix (TFT) display 1024 x 768 16.7 million colors 8MB

64. LCD Projectors

65. Toshiba 42” Plasma Display Flat Panel Plasma Display

66. Media Walls 42” Video Wall Cubes

67. Terminals Dumb Intelligent (smart)

68. Voice Output / Voice-Response Systems Speech coding Voice synthesis

69. Ports

70. Serial Interface -- RS-232C –DB9 pin or DB25 pin –COM1, COM2, etc Parallel Interface –Centronics (C36) and DB25 –LPT1, LPT2, etc SCSI -- Small Computer Systems Interface –15 peripheral devices

71. Ports USB -- Universal Serial Bus –127 peripheral devices Keyboard & Mouse ports IrDA -- Infrared port