As computing has matured, we have added layers of abstraction. All of what you describe is still there if you want it. Most people have moved to a different lay

As computing has matured, we have added layers of abstraction. All of what you describe is still there if you want it. Most people have moved to a different layer of abstraction, however. Think of the people who grew up manipulating network data before the OSI model. They probably felt the same way when later 4 was abstracted away.