Starting with the fact that a Touchskärm is a device which works both as input and output device. Many of the people get confused with this fact and have pretty hard time while convincing their minds to believe it. “How can a device do both jobs of input and output”? If you ask this question to yourself, then you are not alone. This question often boggles the minds of many people. To know the answer to this question, you need to dig deeper a little bit. First, tear down the word itself, Touch+Skärm. You see, the word is made up of two different words. Similarly, the Touchskärm is made up of two components too. Touch Skärm   These two components work differently yet they are incomplete without each other. One of them is an output device, and one of them is an input device. Now it is time to unravel the mystery. Touch Yes, it is an input device. A touch is an outer layer of the Touchskärm. It is the surface where we touch, and the dev...