What are different ABAP/4 editors? What are the differences?

The 2 editors are se38 and se80 both have the ABAP editor in place. In se38 u can go create programs and view online reports and basically do all the development of objects in this editor. In se80 ( object navigator) there are additional features such as creating packages, module pool, function group, classes, programs ( where u can create your programs) and BSP applications.