Think of Device Stage as a home page for your hardware: When you plug something into your PC, you’ll see a menu of popular tasks for that type of device. A multifunction printer, for example, will show options for printing and scanning. In previous versions of Windows, these were often located in separate menus.
It gets better. Manufacturers can customize Device Stage, so for many devices you'll see status information and menu options tailored to your specific model—right down to a slick photorealistic mug shot.
Watch Device Stage in action.