Hofstede distinguishes between individualism and collectivism. Trompenaars identifies 2 dimentions
In many cultures, sexual orientation has very strict rules or expectations to follow. People in strict cultures, who are against "homosexuals" and what not, will most likely stay straight because they want to feel accepted and not be judged or critisezed or in some cases even harmed because of their different sexual orientation. So basically their sexual orientation depends on the opinions of others in their culture.
I studied it in 3rd standard so I don't remember much. As much as I can remember CPU means Computer Programming Unit. Computer doesn't have a full form it is a simple word that means something that computes or calculates.