Source: Waterman Aerobile #6 image, Creative Commons: http://en.wikipedia.org/wiki/File:Waterman_Aerobile_6.jpg; Jess Dixon Flying Car image, Public Domain: http://en.wikipedia.org/wiki/File:Jess_Dixon_in_his_flying_automobile.jpg
The idea that a cultural system is cohesive and systematic; when one element of a culture changes, other elements are likely to change with it.
Some parts of a culture change faster than others, causing disruptions and adjustments in the system.
Any useful tool or skill. Technology is more than just "high tech" computers and electronics, which are things that we commonly think of today when we hear the term. A simple hammer and nail was at one point a revolutionary technology. Looking at technology as any useful tool or skill introduces a historical component to the concept.