In Germany, they ain't. Gymnasium is meant to prepare you for uni, these graduates would probably be kinda like college students coming out of their freshman year in the US. Since all our schools have some focus of some sort (technical, scientific, social sciences, languages, etc.) high school isn't the only one that focuses on IT. High school here really just combines the major secondary school types into a common school where your paths is decided in the same building rather than you switching an entire school to get the education you want.