The term „beamer“ is an interesting one. Elder east Germans use the specific GDR term „polylux“ instead to name an projector. Since Berlin was divided not long ago. You will find both terms still circulating.
Note that "beamer" is usually used for a video projector. A polylux (which, for me, is "obviously" the better term, even though I was born after the unification :D) is only for overhead projectors that display slides. So beamer and polylux are two different things
