Slight correction, there's not really any difference between University and HÃÂ¶gskola(Highschool). Some old HÃÂ¶gskolor has been classified as Universitys, but it's really just a title. For example, if you want to study physics in Gothenburg, you can choose between physics at GÃÂ¶teborgs Universitet(a University) or at Chalmers tekniska HÃÂ¶gskola(a Highscool). Despite the fact that GU is a university, the education at chalmers is considered much more difficult and is rated higher by employers.
/Red_orbiT- making pedantic useless corrections everywhere!