From Twitter hearts to USB-C, these were the biggest tech stories of 2015

The tech world saw a lot of change over the past year.

There were highs, of course — the launch of the new iPhones and Microsoft's first laptop to the growth of social media beyond a networking tool. And then there were the lows — company redesigns, legal battles and encryption debates following the Nov. 13 Paris attacks.

Here are the biggest moments in tech from 2015.

The launch of the Apple Watch

The Apple Watch launched on April 24, after which the smartwatch stirred questions about whether the hype was as up to par as its previous successful gadgets, the iPhone and iPad. While some argued it was the best smartwatch on the market, others thought it was a flop. Read more...