Embarrassed! What are the differences between the first code and the code?

Question

I am a little confused in these two terms. Can someone explain these conditions a bit?

I know that it looks like we define our POCO classes and then create a class with a DbSet set that is inherited from DbContext.

Answer 1

Only for code and code development is the same thing, both use Entity Framework without a physical EDMX file, everything is processed in the code.