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How It Works: Technology of Touch Screen

Touch screen Technology has sparked the explosive growth of the mobile device market nowadays. It started not so long ago with PalmPilot where we can tap on the screen with a tiny stylus, or exercise our thumbs on a BlackBerry micro-keyboard.

Later on along came the iPhone and then everything changed. Suddenly, people were wiping their fingers across screens, pinching images and performing other stuff that had not previously been part of the smartphone interface.

Now we not only take touch input for granted, we expect to be able to use multitouch (using more than one finger on the screen at a time) and gestures as well. Thus, how it works basically?