Definitions of "Pervasive Computing"

(From Domenico Buonocore)

These are the definitions I have come across to describe "Pervasive Computing". I feel that each one of these definitions relate to each other and are supported with their sources.

1. A definition: http://www.webopedia.com/TERM/p/pervasive_computing.htm
   
2. “Computing devices become so commonplace that we do not distinguish them from the ‘normal’ physical surroundings.” (Dix, Finlay, Abowd and Beale 2004)
   
3. “Attempt to break away from the traditional desktop interaction paradigm and move computation power into the environment that surrounds the user.” (Dix, Finlay, Abowd and Beale 2004)
   
4. “The goal of pervasive computing is to create ambient intelligence where network devices embedded in the environment provide unobtrusive connectivity and services all the time, thus improving human experience and quality of life without explicit awareness of the underlying communications and computing technologies.” (Elsevier B.V 2007) (http://www.elsevier.com/wps/find/journaldescription.cws_home/704220/description#description)
   
5. “Ubiquitous computing is the method of enhancing computer use by making many computers available throughout the physical environment, but making them effectively invisible to the user.” (Weiser 1993) (http://www.ubiq.com/hypertext/weiser/UbiCACM.html)
   
6. “Ubiquitous computing, or calm technology, is a paradigm shift where technology becomes virtually invisible in our lives. Instead of having a desk-top or lap-top machine, the technology we use will be embedded in our environment.” (Riley)
   (http://www.cc.gatech.edu/classes/cs6751_97_fall/projects/say-cheese/marcia/mfinal.html)
   
7. Opposite of VR. Reinforces the computer to be present in the real world with the users and not the users in with the VR.
   
8. Integrating technology in other objects other than those used for computing i.e. clothing and everyday objects to allow connectivity with other objects.