Top 10 tech stories 2015: Transformation and transition

Cloud and mobile computing have created an imperative for the tech world: Change or fail. This year, legacy vendors like Dell, EMC and Microsoft all took major steps to reinvent themselves, sparking some of the biggest tech stories of the year. And all around us we've seen portents of big change at the intersection of tech and culture: self-driving cars, wearable technology, the use of drones for fun and profit. That's prompting increased attention on safety, privacy and public policy concerns a