Still remember with Pranav Mistry, the inventor of Sixth Sense device, is working on a new project called PreCursor that can turn any regular computer monitor into a touch screen.
Here’s a video of PreCursor :
PreCursor uses two camera that add a virtual layer in front of your computer screen and any interactions that you perform in this layer are transmitted to the computer.
The virtual touchscreen created by PreCursor is in a way more versatile than the existing touchscreen of your mobile phone or tablet. That’s because in addition to the regular tap /click gesture, PreCursor has also recognize the hover action, something which require a mouse and is possible to do with existing touch screens. The technology is still in the labs but definitely has some great potential.
neovanatica is a well known professional blogger and Information Technology teacher. He holds an Information System degree in Computer Science. 
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