As new computational technologies and methods become available, the nature of the interaction between users and computers also changes. The transition from command lines to "windows, icons, menus, pointer" (WIMP) interfaces made computers much more accessible, and the incorporation of touch-based interaction into mobile devices fueled the wide use of smartphones and tablets. Such transitions often are accompanied by novel ways for users to interact with computers. Initially, it may be unclear which methods are becoming widely accepted and which ones will fall by the wayside.
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