Oleophobic screen. Accelerometer. Capacitive touch screen. Proximity sensor.
Macworld has an article from Computerworld’s John Brandon that explains how some of these iPhone technologies works. From the oleophobic coating that prevents grime from sticking to the screen to the proximity sensor that blanks the screen when the iPhone is moved to the ear. There’s also the micro-electromechanical systems in the accelerometer, and how the GPS and camera work together to bring augmented reality to the iPhone.
Recommended read.
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