* Buffer Type:: The basic object of editing.
* Marker Type:: A position in a buffer.
* Window Type:: What makes buffers visible.
-* Frame Type:: Windows subdivide frames.
+* Frame Type:: Windows subdivide frames.
+* Terminal Type:: A terminal device displays frames.
* Window Configuration Type:: Recording the way a frame is subdivided.
* Frame Configuration Type:: Recording the status of all frames.
* Process Type:: A subprocess of Emacs running on the underlying OS.