Actually I had seen that article before I posted my question but when I read it I couldn't figure our how do we need to connect it to a desktop and is there any compatibility issue I want to be sure before buying parts
Touch-screen monitors are a bit more complicated than traditional designs, because they are active rather than passive devices. Traditional screens just have to show a picture, whereas touch-screen monitors have to feed information back to the PC. They often do this via a separate USB cable that runs next to the VGA/DVI/HDMI/etc video cable.
"Perception without comprehension is a dangerous combination."