Human Computer Interface

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Human Computer Interface
By Rajesh Aggarwal, Director, Election
Commission of India
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• Everything should be made
• as simple as possible,
• but not simpler. 
• Albert Einstein

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Tools Save Time, Money, Effort
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Punch Cards EDLIN line editor Assembly level
Programming
Higher level languages MOUSE GUI Mac,
Windows WIMP Windows, Icons, Menus and Pointing
device
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Touch and Texture

• IN
• Stylus now common on cellphones and PDAs,
  Tablet PCs
• OUT
• Force feedback on steering wheels and
  joysticks on games
• Braille EVMs,
• Touchscreens to show voter lists

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SMELL

• IN
• Artificial nose
• detect bombs, trace scent of criminals,
  warn of dangers
• OUT
• Scent emitting chips
• add new element to VR

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SOUND

• Speech Recognition
• Simple command set easy 646 on Airtel, IVRs
  for rail reservation, in Jet fighter planes
• Understanding full sentences difficult, but
  learning softwares now becoming better
• Text to Speech
• Many English systems
• HINDI Indianised English used by EC
  to announce results

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Natural language

• OCR
• Grafiti
• Typed Ask Jeeves, ELIZA, Alicebot
• What is meaning?
• Domain specialised systems work well

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Computer should speak and understand MY language

• Vernacular OS support, on Web, programming
  language support,
• printer support
• Voter Lists in 14 languages
• Use of Maps - GIS

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Extend my BODY
ROBOTS Industrial use, in deep oceans, in
Space, in HOMES
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Be my part!

• Chip embedding Cyborgs
• Thought waves EEG
• Smart clothes
• Projecting movies into Dreams
• HOLODECK
• Last invention?

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Thanks rajeshaggarwal_at_eci.gov.in