A touch screen is a display screen that is found on computers, laptops, smartphones and tablets that works as a visual input device with screens that are sensitive to pressure. The user interacts with the computer screen without the appearance of physical keyboard just by clicking the pictures or words that appear on the screen. Touch screen that are found in devices like smartphones and tablets are designed to keep the fingerprints from being visible. It is a bigger screen that fits in well with the multi media functions are the ones that are found on the latest mobiles. One can watch videos, movies or TV shows that makes it easier to view on a larger surface area that covers the the complete screen of the mobile. It does away with the keypad and for music, photographs and videos, you hardly need buttons and you only need camera buttons when you take a picture. It makes sense for these to be designed to appear on the screen, rather than to stick...