Is it true that Logitechs DarkField mouse works on glass surfaces?”
The computer mouse has come a long way since I first put my hand on one. It was a friction mouse that had a little rubber ball underneath that rolled along the table surface. As you moved the mouse, the rubber ball would spin and that motion was translated into the mouse pointer moving on the screen. As technology advanced, we saw the introduction of the scroll wheel, the cordless mouse and a variety of user-definable function buttons. But the most significant advancement to the mouse I believe was in the tracking technology. The little ball was replaced with optical technology that uses light to track the table surface to move the pointer on the screen. As time passed, optical refinements continued with infrared and blue LEDs to improve accuracy and responsiveness. Some even replaced the LEDs with lasers for even better tracking results. But with all that, there remained an optical obstacle that has persisted over the years. You couldn’t use an optical mouse on a glass surface. To dev
