Many frustrations exist in this life.
One of the more prevalent frustrations of modern life has come with the expansion of computer/internet/email usage among the general population.
Penetration into the general community of computer/internet useage must be approaching (or even exceeding) the penetration of telephones (pre pocketsized mobiles).
Just as Dorothy's house arrived into the life of the Wicked Witch of the East, so have computers/internet just appeared in the otherwise orderly life of the adult generation.
The bulk of computer/internet users are self-taught. Most people have become proficient in mundane tasks, thus masking their underlying incomprehension of even the simplest technical matters.
Mine Host is constantly amazed when somebody possessing above average intelligence, engineering skill, and problem-sovling abilities, will use interchageably any/all of the following terms:
Application Software (any)
.... quite difficult when someone has become het up over the (choose any term above) and you're trying to solve it for them over the phone .