Final answer:
The main purpose of the RGB color model is to provide a system for sensing, representing, and displaying images in electronic display systems. It allows for the additive combination of red, green, and blue lights to reproduce the spectrum of colors we see.
Step-by-step explanation:
The main purpose of the color model in which white is the additive combination of the three primary colored lights– red, green, and blue lights can be added together in various ways to reproduce the spectrum of colors we see is to provide a system for sensing, representing, and displaying images in electronic display systems. This color model, known as the RGB color model, is used in devices like digital cameras, scanners, projectors, computer monitors, and televisions.