Is the knowledge of University useless and outdated?

         Presumably, many college students are thinking that the knowledge they have learned seems useless . Actually , I thought so at the beginning . For example, when I was an undergraduate , Because the undergraduate is an electronics major , Therefore, it is inevitable to escape “ Four circuits ”“ signalling system ”“ electromagnetic field ” The torture of these courses . therefore , When I took these courses , I also feel that these classes are useless . Especially when learning analog electricity , Use hole board to build various circuits and point diodes . At first I thought it was fun , But the feeling behind it is useless . In class , Those formulas learned to calculate various parameters finally feel useless . At that time, I felt that the technology learned in universities was too low 了 , It is often welded with hole plates .

        But the more technology is learned later , Instead, I have to look back at those “ It's useless ” Things that are . There is a saying ： Come out to mix , Sooner or later . It can probably describe this state . Especially when designing circuit boards , Beginners probably use XX What functions can the chip accomplish , Mainly to realize the function , Especially now, many functions have been inherited , Just design some peripheral circuits , I feel that some formulas I learned are useless . But when the scale of the circuit became larger and larger , Here's the problem . You will find ,“ How does the chip get hot ”,“ Yesterday was normal , Why not today ”,“ It can be used in the dormitory , How to change a place is not enough ”,“ Why does the MCU always restart automatically ” And so on . At this point , What I learned before can be used . Because the previous design is all based on function realization , Without considering “ Power matching ”、“ Anti interference ” Other questions , To solve these problems, we have to return to the most basic knowledge we have learned before . So the knowledge learned in university is not useless , It's not time for you to use it , Or you can't use them at your current level . The knowledge of university is the most essential thing extracted from the appearance . It can explain the current phenomenon , You can also predict what will happen in the future . So university knowledge is not useless .

        On the other hand , Since university knowledge is useful , Do you have to learn it all well . I think most people will have this doubt , I can only say that it's too difficult to learn it all . Take my undergraduate electronics major for example , Not only to learn circuit knowledge , You have to learn SCM 、DSP、FPGA、 computer network 、 software design 、 operating system 、 Computer control 、....... The scope of learning is particularly wide , Especially complete . It's too difficult to master all the courses , If you go deep into each course , It's not easy to finish that course . therefore , Personally, I think you can choose the direction you want to study and go deep , Understand other courses , There's no need to go deep . Because it is wide but not precise , Not as good as specialization .

        These are some things that came to mind inadvertently today , So feel the fish in the Laboratory , Write down this article , I hope I can help my younger brothers and sisters .