@item Frame
A frame is a rectangular cluster of Emacs windows. Emacs starts out
with one frame, but you can create more. You can subdivide each frame
-into Emacs windows (q.v.). When you are using X windows, all the frames
-can be visible at the same time. @xref{Frames}.
+into Emacs windows (q.v.). When you are using a windowing system, all
+the frames can be visible at the same time. @xref{Frames}.
@item Function Key
A function key is a key on the keyboard that sends input but does not
@item Menu Bar
The menu bar is the line at the top of an Emacs frame. It contains
-words you can click on with the mouse to bring up menus. The menu bar
-feature is supported only with X. @xref{Menu Bars}.
+words you can click on with the mouse to bring up menus, or you can use
+a keyboard interface to navigate it. @xref{Menu Bars}.
@item Message
See `mail'.
@xref{Pages}.
@item Paragraph
-Paragraphs are the medium-size unit of English text. There are
+Paragraphs are the medium-size unit of normal (non-program) text. There are
special Emacs commands for moving over and operating on paragraphs.
@xref{Paragraphs}.
@item Scroll Bar
A scroll bar is a tall thin hollow box that appears at the side of a
window. You can use mouse commands in the scroll bar to scroll the
-window. The scroll bar feature is supported only with X. @xref{Scroll
-Bars}.
+window. The scroll bar feature is supported only under windowing
+systems. @xref{Scroll Bars}.
@item Scrolling
Scrolling means shifting the text in the Emacs window so as to see a