Seems like you're deliberately ignoring the details I pointed out with my language. You agree that they didn't invent it, but you tried to convince me that they popularized it and I pointed out that it would seem to me that Microsoft popularized the GUI far more than Apple ever did (popularization being quantitative), while Apple was the first to roll out GUI on mass produced units. To the point that Bill Gates spoke against GUI's at first, you might recall that he said much of that while at the same time ranting and whipping at his employees that he wants Microsoft to develop a GUI to compete with Apple. Gates was being strategic, not genuine. To my point, Microsoft wasn't very good at anything other than business strategy and cutting out the competition through various legal, contractual and guerrilla marketing strategies. BUT! I think you give Apple far too much credit for various things, although they do deserve some credit for stirring up competition over the years.