Paned window
From Infogalactic: the planetary knowledge core
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File:Window with recent and old panes.jpg
A paned window
A paned window is a window that is divided into sections known as panes. Originally, the meaning pertained to sectioned glass windows in walls.
Computer scientists have adopted the term "pane" to refer to parts of sectioned windows on a graphical display. Examples of this usage include in the context of a code browser in a typical integrated development environment (IDE); a file browser with multiple panels; or a web page that contains frames.
