The document discusses the history and principles of ubiquitous computing as envisioned by Mark Weiser in the 1990s. It outlines Weiser's vision of three key devices - the Xerox Pad, Tab, and Liveboard - that represent his goal of seamlessly integrating virtual and physical worlds using invisible computing technologies. The document also notes similar concepts like pervasive computing, calm technology, and ambient intelligence. Potential challenges mentioned include issues with mobility, access control, privacy, and power supplies for ubiquitous computing applications.

2. Agenda
• Introduction & History
• Principle
• MARK WEISER’s 3 Key Devices
• Goals
• Similar Technologies
• Generic Features
• Design Principles
• Problems
• Applications
• Future Scope

3. History
• Articulation of the IDEA.
• Use it without even thinking about it.

4. Basic Principle
“The most profound technologies are those that dissappear.
They weave themselves into the fabric of everyday life until
they are indistinguishable from it.”

5. Mark Weiser’s 3 Key Devices
• XEROX PAD
• XEROX TAB
• XEROX LIVEBOARD

6. Goals
• Invisible technology.
• Integration of Virtual & Physical worlds.
• Wireless Technology.
• Smart enough to Sense and React to the Situation.

7. Technologies With Same Perspective
• PERVASIVE COMPUTING
• CALM TECHNOLOGY
• AMBIENT INTELLIGENCE

9. What Makes ém Different!

10. What is Holding ém Back?
• Mobility Issues
How to integrate mobile communicators into complex
information infrastructures?
How to develop and manage adaptable, context aware software
systems?
Power supplies!
• Access Control
• Privacy
Is privacy of the user & data being maintained?

12. References
• Wikipedia :
http://en.wikipedia.org/wiki/Pervasive_Computing
• http://www.doc.ic.ac.uk/~mss/UbiquitousComputing. pdf
• http://www.ijecs.in/issue/v2-i12/1%20ijecs.pdf
• http://www.cc.gatech.edu/~keith/classes/ubicomplexity/p
dfs/infra/abowd-sweng.pdf