Earlier quoted context omitted.
Tabs is a form of "Multiple Top-Level Windows Interface"? Windows MDI is a nested window manager. Tile and Cascade, move and resize, maximize, minimize. That is gone. Windows stay maximized, title bar eaten by buttons and tabs. Browser tabs is Taskbar: * Navigation: Ctrl+Tab vs Alt+Tab * Position: Top vs Screen Edge * when open a lot both were unmanageable
MDI stands for “Multiple Document Interface”. I have no idea what (Windows-specific) construct you are referring to. https://en.wikipedia.org/wiki/Multiple-document_interface
Also I can look on the link I post and Ctrl+F "Multiple Top-Level Windows Interface"
> Microsoft Word 2003: MDI until Microsoft Office 97. After 2000, Word has a Multiple Top-Level Windows Interface, thus exposing to shell individual SDI instances, while the operating system recognizes it as a single instance of an MDI application.