This year saw Apple face its biggest rival to the iPhone yet from Korean tech giants Samsung, while the US military introduced a new generation of drones.
More amazing image galleries of the year:
A year in space
A year of discovery
People of the year
The year in weather
The year in wildlife
Weird and wonderful
If you would like to comment on this slideshow or anything else you have seen on Future, head over to our Facebook page or message us on Twitter.