Google Chrome OS unveiled, released to open source community

Touchscreen

A touchscreen is a display that allows a user to interact directly with the on-screen contents via physical touch rather than with a mouse, touchpad, or other external control system. In addition to direct touch by finger or hand, other passive items like a stylus are also able to control the touchscreen. In the past two decades, touchscreens have rapidly changed from only sensing on/off at a single point to the now common multi-touch sensors that can process multiple contact points and often integrate analog pressure control, roviding the ability to detect how hard the user is pressing the screen. Touchscreens are increasingly visible in our society as the popularity of PDAs, GPS units, mobile phones, and portable gaming devices such as the Nintendo DS rise.

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