The Langstroth hive employs frame boxes of differing sizes. It makes a distinction between brood boxes and honey supers. This is a bit easier on the beekeeper. They can put a metal grate in the hive, and trap the queen in the brood chamber. Then, any frames built above the brood chamber are guaranteed to have only honey.
In the wild, bees build their nest somewhat like an onion, with the brood in the center, and the honey accessible on the outside rings. The Rose hive method allows the queen to lay the brood in a more natural way. The slide deck is a good summary but there is more in the book.
You would probably enjoy reading the history of the Langstroth hive. https://en.wikipedia.org/wiki/Langstroth_hive#Hive_body_and_...