iTunes first supported an Apple iPod and also first supported OS X in October of 2001. A version of iTunes arrived on Windows 2000 and Windows XP in October of

iTunes first supported an Apple iPod and also first supported OS X in October of 2001. A version of iTunes arrived on Windows 2000 and Windows XP in October of 2003; two years. (October 2003 also saw the announcement of Panther, 10.3.) Prior to the availability of iTunes on Windows, MusicMatch Jukebox was commonly used with Windows, and that package was included with various iPod devices. The general market acceptance of OS X didn't really get rolling until the Intel port, and that was announced during the 2005 WWDC. (I don't have that plot handy; that's from memory.) Here's a plot of iPod sales, and note the sales trend and the years: http://www.macobserver.com/tmo/article/charting_apples_growth_ipods_ipads_iphones_macs_dollars/ http://www.macobserver.com/tmo/article/charting_apples_growt... For more plots on sales of iPod and Mac devices (as well as iPad and iPhone), see the Asymco site. Here's one of the many available plots: http://www.asymco.com/2011/07/26/apple-has-moved-on/ http://www.asymco.com/2011/07/26/apple-has-moved-on/ And in a business, recognize too that Apple would have been foolish to constrain the potential sales of their then-new iPod product (and now iPhone and iPad) from the volume computing market, and that market was and remains Windows. And first with MusicMatch Jukebox and later with iTunes, they didn't. And they still don't. Their statements and their history of intentional self-cannibalization among their products points to this, too. And in general, always question what your professors tell you. Always. That's part of what college is supposed to teach students, even if your individual professors don't or won't.