Tafe is an Australian thing mostly (I think), its like University, but its not quite as good, if you dont get into Uni you can do Tafe, youu do several courses in tafe to get diffrent certifficates and then you will be able to get into Uni (hopefully).
I have NOT been to university, i'm in highschool. In the electronics lessons at school (its only a semester (20 weeks approx)) they teache us very limited theory, we learnt what a transistor does and what resistor does, they also tought us how to read resistor values. The rest of the lessons are practical (they teach us to solder and put a circuit together) and thats about it.