* Frame Type:: Windows subdivide frames.
* Window Configuration Type:: Recording the way a frame is subdivided.
* Frame Configuration Type:: Recording the status of all frames.
-* Process Type:: A process running on the underlying OS.
+* Process Type:: A subprocess of Emacs running on the underlying OS.
* Stream Type:: Receive or send characters.
* Keymap Type:: What function a keystroke invokes.
* Overlay Type:: How an overlay is represented.