Early on a lot of the Specialties that are in demand now did not exist. Evolution in the industry is fast enough that the Basic CS degree isn't enough. But we learned the theory, best practices, and how tos. Then we built the Specialties from the ground up. Even then in CS101 first day, the professor asked for a show of hands. "Who here has experience coding in procedural languages?" After 90% of the class raises their hands, he says - "It is the opinion of this school that you are all ruined for practicing coding in the future. Object Oriented languages will be that future." They didn't even teach any object oriented languages at the time.