Abstract
Augmented Reality and Virtual Reality is
very closely related to each other, yet
each faces different challenges of its own
and has its own area of usage. In this
paper we try to highlight the concepts,
their usage domains and technical
barriers. We focused on augmented
reality and its contrast to virtual reality.
Chapter1
Introduction to characters of
Ubiquitous
Computing
Introduction
Ubiquitous computing is a paradigm shift
where technology becomes virtually
invisible in our lives.
Mark Weiser, who is considered as the
father of Ubiquitous computing, defined it
as the effort to integrate computation
into the environment rather than having
computers which are distinct objects.
Doing so will enable people to move
around and interact with information and
computing more naturally and casually
than the traditional approach. He
complements his saying with the
following statement; “Machines that fit
the human environment, instead of
forcing humans to enter theirs, will make
using a computer as refreshing as taking
a walk in the woods” [3].
One of the main goals of ubiquitous
computing is to enable devices to sense
changes in their environment and to
automatically adapt and act based on
these changes which in turn are
dependent on user needs and
preferences. The growth of such system
is highly catalyzed by the advent of
cheap, low-power computers that include
equally convenient displays, networks
that tie them all together and software
systems
implementing
ubiquitous
applications. [2]
One important aspect which comes into
consideration while studying Ubiquitous
computing is Calm Computing. It refers
to the idea of computers fading into the
background while allowing us to focus on
our kernel and normal activities with a
high degree of fluency and not hampering
with defocusing tools. With this
technology the artifacts are intelligent,
but do not require focus