The acronym of "Istituto Tecnico Industriale Statale" (translated would be "State Industral/Technical Institute").
The finest type of school in
Italy, that prepares you for a future job and gives you technical culture, but to excel in the
study course you need to be rational enough (if you aren't, you'll probably become more rational in a school like this).
After the diploma (graduation) you can start either to find for a job that involve technical skills, or continue the study courses in University or Politechnic (pratically an Institute of Technology).
If you're lucky, and the
teachers are kind enought, you could get for
free hardware that otherwise would be scrapped, even rare
one if you know what and where to look for.
The drawback is (usually) the lack of female students that could lead male students to become crazier that what they were (mainly if they don't have female friends nor a
girlfriend), and in some cases even become incels.
Carlo: Where do you study?
Mattia: I study in an ITIS, i've chose the ITclass.
Carlo: Is it hard?
Mattia: Not really: if you like technical
stuff, and you're rational enought, the ITIS is the right school for you.