If your pointing device is a mouse, turn it over. The chances are you’ll see a red LED light if you’re not seriously old-school and your mouse has a ball, this light serves as the illumination ...

At the time, Logitech was primarily a software development outfit, but the success they saw in selling the Depraz mouse led them to leave logic and looping behind in order to pursue peripherals ...

They work by emitting light from an LED or laser, and a CMOS sensor detects the light reflections as the mouse is moved. Early optical mice required a special mouse pad, but modern devices can be ...