Does 'bilgisayar' comes from words that mean 'information counting'?
Yes, information counter :)
ıf müdürün means "director's" how should I write 'your director'?
the same way.
But "your director's computer" is "Müdürünün bilgisayarı".
so here "your director" doesn't make sense
In one exercise you use Müdürun and in another you use yönetmen
Yönetmen is a movie director, while müdür is a director of a company..
Why is 'The director's computer's very old.' incorrect?
Why is "The director's old computer" wrong?
I guess that would be 'müdürün eski (bir) bilgisayarı'.
It's a matter of word order.
What does boss mean then ?