Linked from
The 19 pages that link to Touchscreen, each with the reason it gives.
SmartphoneRelated: It became the defining input surface for most modern smartphones.
Consumer electronicsRelated: Touchscreens let compact devices combine display and physical controls.
Mobile gameRelated: Touchscreens make tapping, swiping, and dragging common mobile game controls.
Mobile phoneRelated: It combines the phone's display and primary input surface in one component.
Nintendo DSRelated: The lower screen let games use direct touch instead of buttons alone.
Mobile appRelated: Touch input shapes mobile-app controls, gestures, and layout choices.
Fitts's lawRelated: Touch targets can be evaluated by their width and distance under Fitts's law.
Index fingerRelated: The index fingertip often selects icons and controls on touchscreens.
Mobile deviceRelated: Touch input lets a compact device combine display and controls on one surface.