The word "ubiquitous" can be defined as "existing
or being everywhere at the same time," "constantly
encountered," and "widespread." When applying this
concept to technology, the term ubiquitous implies that technology
is everywhere and we use it all the time.
Because of the pervasiveness of these technologies, we tend to
use them without thinking about the tool. Instead, we focus on the
task at hand, making the technology effectively invisible
to the user.