Editing Stacking window manager (section)

== History ==
{{main|History of the graphical user interface}}
* 1970s: The [[Xerox Alto]] which contained the first working commercial [[GUI]] used a stacking window manager.<ref>{{Cite web |author-last=Lineback |author-first=Nathan |title=The Xerox Alto |url=http://toastytech.com/guis/alto3.html |website=toastytech.com}}</ref>
* Early 1980s: The [[Xerox Star]], successor to the Alto, used [[Tiling window manager|tiling]] for most main application windows, and used overlapping only for dialogue windows removing the need for full stacking.<ref>{{Cite web |author-last=Lineback |author-first=Nathan |title=The Xerox Star |url=http://toastytech.com/guis/star.html |website=toastytech.com}}</ref>
* The [[Classic Mac OS]] was one of the earliest commercially successful examples of a [[GUI]] which used stacking windows.
* [[Graphics Environment Manager|GEM]] predated Microsoft Windows and used stacking, allowing all windows to overlap.
* [[Amiga OS]] contains an early example of a highly advanced stacking window manager.