" When Jobs started developing Next, the competition he had in mind was the Mac. PCs were not even a blip on his competitive radar screen. After all, at that time PCs didn’t even have an easy-to-use graphical interface. But by the time the Next computer system emerged three years later, Microsoft’s persistent efforts with Windows were about to change the PC environment. The world of Windows would share some of the characteristics of the Mac world in that it provided a graphical user interface, but it also retained the fundamental characteristics of the PC world, i.e., Windows worked on computers that were available anywhere in the world from hundreds of sources. As a result of fierce competition by the hundreds of Computer manufacturers supplying them, these computers became far more affordable than the Mac. "

― Andrew S. Grove , Only the Paranoid Survive. Lessons from the CEO of INTEL Corporation