<A target="_blank" href="http://www.pcworld.com/article/199964/windows_7_compared_to_other_best_sellers.html?tk=rss_news">If you want to know just how fast Windows 7 is selling for Microsoft</A>, this article includes some comparisons, such as: Ford's Model T (1908-1927) sold at the rate of one car every 37 seconds while Win7 is selling is going at 7 copies per second.