When Windows first shipped, 20 years ago this month, it was considered nothing more than a slow operating environment that had arrived late to the party, well behind the industry leaders, Apple and Xerox PARC. Now, it's the operating system used on nearly 95 percent of all the desktops and notebooks sold worldwide. Take a look at Window's past and present, and what lies ahead in the future, including an interview with Mr. Bill Gates himself.