DESC: Touch the future of technology and enjoy a more personal workspace with HPrsquos first Microsoft Windows 7 OS Certified multi-touch monitor the HP Compaq L2105tm 21-inch Touchscreen Monitor featuring optical touch panel technology.The way to change how you feel about your monitor is in your hands. The L2105tm is driven by optical touch technology. Unlike other technologies which only recognize a single touch point optical touch recognizes multiple inputs. So whether you touch your fingertip to the panel to scroll through screens or use two fingers to replace your mouse as you perform common multi-touch gestures with multi-touch technology your inputs will be recognized quickly accurately and without drift. You can also easily rotate position shrink and enlarge documents or navigate media rich 3D content. Because the L2105tm is designed specifically for multi-touch a hard stylus is included and tucks away neatly into the side of the monitor for easy storage.