What is pervasive computing?

As a group our first initial definition of pervasive computing is:

Definition:
Pervasive computing is the placement of microprocessors in every day
objects. This characterizes mobile, invisible devices which are numerous
and convenient in placement and function.

Bibilography:

Victorian Electronic Democracy (2005) Glossary, Final Report, Scrutiny of
Acts and Regulations Committee [online] availbale from:
http://www.parliament.vic.gov.au/sarc/E-Democracy/Final_Report/Glossary.htm

V2 News (2003) Glossary, Open Systems, V2 News [online] available from:
http://framework.v2.nl/archive/archive/node/text/default.xslt/nodenr-156647

Wikipedia (2007) Ubiquitous Computing, Wikipedia.org [online] available
from: http://en.wikipedia.org/wiki/Ubiquitous_computing