Apple serves the computer hardware industry by manufacturing and selling devices like Mac computers, iPhones, iPads, and Apple Watches. They also serve the computer software industry by developing and selling operating systems like macOS and iOS, as well as various software applications. Additionally, Apple serves the digital distribution industry through platforms like the App Store, iTunes Store, and Apple Music, where users can purchase and download digital content such as apps, music, movies, and books. However, Apple does not serve the cosmetic products industry.