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HCI 3e - Ch 2: The computer

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Alan Dix
Alan Dix

Chapter 2: The computer from Dix, Finlay, Abowd and Beale (2004). Human-Computer Interaction, third edition. Prentice Hall. ISBN 0-13-239864-8. http://www.hcibook.com/e3/

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chapter 2 the computer
The Computer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interacting with computers ,[object Object],what goes in and out devices, paper, sensors, etc. what can it do? memory, processing, networks
A ‘typical’ computer system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],?
How many … ,[object Object],[object Object],[object Object],are you thinking … … PC, laptop, PDA ??
How many computers … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interactivity? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Richer interaction sensors and devices everywhere
text entry devices keyboards (QWERTY et al.) chord keyboards, phone pads handwriting, speech
Keyboards ,[object Object],[object Object],[object Object],[object Object]
layout – QWERTY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
QWERTY (ctd)
alternative keyboard layouts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
special keyboards ,[object Object],[object Object],[object Object]
Chord keyboards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
phone pad and T9 entry ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Handwriting recognition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Speech recognition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Numeric keypads ,[object Object],[object Object],[object Object],[object Object],[object Object],telephone calculator 4 5 6 7 8 9 * 0 # 1 2 3 4 5 6 1 2 3 0 . = 7 8 9
positioning, pointing and drawing mouse, touchpad trackballs, joysticks etc. touch screens, tablets eyegaze, cursors
the Mouse ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
the mouse (ctd) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
How does it work? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Even by foot … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Touchpad ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Trackball and thumbwheels ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Joystick and keyboard nipple ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Touch-sensitive screen ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Stylus and light pen ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Digitizing tablet ,[object Object],[object Object],[object Object]
Eyegaze ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cursor keys ,[object Object],[object Object],[object Object],[object Object]
Discrete positioning controls ,[object Object],[object Object],[object Object],[object Object]
display devices bitmap screens (CRT & LCD) large & situated displays digital paper
bitmap displays ,[object Object]
resolution and colour depth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
anti-aliasing ,[object Object],[object Object],[object Object],[object Object],[object Object]
Cathode ray tube ,[object Object],[object Object]
Health hazards of CRT ! ,[object Object],[object Object],[object Object],[object Object],[object Object]
Health hints … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Liquid crystal displays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
special displays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
large displays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
situated displays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],Hermes a situated display small displays beside office doors handwritten notes left using stylus office owner reads notes using web interface
Digital paper ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],appearance cross section
virtual reality and 3D interaction positioning in 3D space moving and grasping seeing 3D (helmets and caves)
positioning in 3D space ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
pitch, yaw and roll pitch yaw roll
3D displays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],also see extra slides on 3D vision
VR headsets ,[object Object],[object Object],[object Object]
VR motion sickness ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
simulators and VR caves ,[object Object],[object Object],[object Object],[object Object],[object Object]
physical controls, sensors etc. special displays and gauges sound, touch, feel, smell physical controls environmental and bio-sensing
dedicated displays ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sounds ,[object Object],[object Object],[object Object],[object Object]
Touch, feel, smell ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BMW iDrive ,[object Object],[object Object],[object Object],[object Object]
physical controls ,[object Object],[object Object],large buttons clear dials tiny buttons multi-function control easy-clean smooth buttons
Environment and bio-sensing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
paper: printing and scanning print technology fonts, page description, WYSIWYG scanning, OCR
Printing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of dot-based printers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Printing in the workplace ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Fonts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Fonts (ctd) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Readability of text ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Page Description Languages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Screen and page ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scanners ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Scanners (ctd) ,[object Object],[object Object],[object Object],[object Object]
Optical character recognition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Paper-based interaction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
memory short term and long term speed, capacity, compression formats, access
Short-term Memory - RAM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Long-term Memory - disks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Blurring boundaries ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
speed and capacity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
virtual memory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Compression ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Storage formats - text ,[object Object],[object Object],[object Object],[object Object],[object Object]
Storage formats - media ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
methods of access ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
processing and networks finite speed (but also Moore’s law) limits of interaction networked computing
Finite processing speed ,[object Object],[object Object],[object Object],[object Object],[object Object]
Moore’s law ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],/e3/online/moores-law/
the myth of the infinitely fast machine ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Limitations on interactive performance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Networked computing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The internet ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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HCI 3e - Ch 2: The computer

  • 1. chapter 2 the computer
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8. Richer interaction sensors and devices everywhere
  • 9. text entry devices keyboards (QWERTY et al.) chord keyboards, phone pads handwriting, speech
  • 10.
  • 11.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20. positioning, pointing and drawing mouse, touchpad trackballs, joysticks etc. touch screens, tablets eyegaze, cursors
  • 21.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28.
  • 29.
  • 30.
  • 31.
  • 32.
  • 33.
  • 34. display devices bitmap screens (CRT & LCD) large & situated displays digital paper
  • 35.
  • 36.
  • 37.
  • 38.
  • 39.
  • 40.
  • 41.
  • 42.
  • 43.
  • 44.
  • 45.
  • 46.
  • 47. virtual reality and 3D interaction positioning in 3D space moving and grasping seeing 3D (helmets and caves)
  • 48.
  • 49. pitch, yaw and roll pitch yaw roll
  • 50.
  • 51.
  • 52.
  • 53.
  • 54. physical controls, sensors etc. special displays and gauges sound, touch, feel, smell physical controls environmental and bio-sensing
  • 55.
  • 56.
  • 57.
  • 58.
  • 59.
  • 60.
  • 61. paper: printing and scanning print technology fonts, page description, WYSIWYG scanning, OCR
  • 62.
  • 63.
  • 64.
  • 65.
  • 66.
  • 67.
  • 68.
  • 69.
  • 70.
  • 71.
  • 72.
  • 73.
  • 74. memory short term and long term speed, capacity, compression formats, access
  • 75.
  • 76.
  • 77.
  • 78.
  • 79.
  • 80.
  • 81.
  • 82.
  • 83.
  • 84. processing and networks finite speed (but also Moore’s law) limits of interaction networked computing
  • 85.
  • 86.
  • 87.
  • 88.
  • 89.
  • 90.