Since then — especially over the past 15 years — the Internet has become the world's dominant platform.

For a long time, the only platform worth a developer's time was Windows. Because of the Internet, which all operating system hook into, that's not the case anymore.

Meanwhile, Apple launched the iPhone six years ago. Three years later came the iPad. Google sold its first Android phone in 2008, five years ago.

Is the PC dead yet? And if it is, who are the winners and losers?

With data from ComScore, Nielsen, NPD, our own surveys, and a host of other sources, we've come up with a full report … and answers.