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===Introduction===
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Interaction between humans and computers have been implemented so far in a haptic way, and even if this was not the way it was intended, it is not a coincidence. Since the time of the early humans, most tools have been designed to be held, pressed, squeezed, swung, etc. Computers are not the exception. However, computers, design wise, had always been divide into input and output components, which were mutually exclusive. This is somewhat counter instinctive since no other tool seems to function that way. This has all changed with the introduction of touchscreen devices, which have made a great effort to fuse input and output, in order to make it possible for the user to reach with his/her own hands for what he wants from the computer. Touchscreen devices are however far from ideal yet. Touchscreens keep users from receiving useful feedback from their tools (devices), and this makes the use of touchscreens prompt to errors, and lack of efficiency. Better design, and technology could fill these gaps in touchscreen technology, and make computers complete tools that take advantage of our instinctive ways to use tools, and especially the sense of touch.
===Touch-Screen's Effort To Make Communication More Natural===
