![]() In the past, the initial resistive digitizers, which worked by using pressure to make two sheets of material touch, weren't reliable enough, required too much pressure and could only handle a single input at a time.īy contrast, today's capacitive digitizers work when the user disturbs an electromagnetic field on the screen's surface with a finger or specialized stylus pen. On the hardware side, the secret to adding touch is the digitizer, a translucent grid array that sits on top of a notebook's LCD display. More to the point, she sees them going from exclusively business systems to those that consumers buy as well. Spurred on by the release of Windows 7 and new hardware, Colgrove forecasts that the number of touch notebooks sold could rise from today's 2 to 3 percent of the market to as much as 10 percent in 2015. ![]()
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