In Emacs, a window is one part of a frame, displaying one buffer. For questions about operating system windows, see the tag 'frame.

Emacs can split a frame into two or more windows. Multiple windows can display parts of different , or different parts of one buffer.

Note that what most operating systems call a window is called a frame in Emacs. For questions related to operating system windows, see the tag . What Emacs calls a windows is called a pane in some other systems.

For questions about running Emacs on Microsoft's family of operating systems, see .

Multiple always imply multiple windows, because each frame has its own set of windows. Each belongs to one and only one frame. The active window's is highlighted.

Tag questions about with appropriate additional tags to avoid confusion with frames and GUI conventions.

Useful links:

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