Touchscreen

An input and display device that detects touch gestures directly on its surface, allowing users to interact with content by tapping, swiping, pinching, or dragging. While touchscreens enable intuitive direct manipulation, they present accessibility challenges for users with motor impairments, visual impairments, or tremor conditions. Accessible touchscreen design requires adequate touch target sizes (at least 44x44 CSS pixels per WCAG), gesture alternatives, and compatibility with assistive technologies like screen readers.