AR, VR, etc.

https://en.wikipedia.org/wiki/Augmented_reality#Software_and_algorithms

http://www.techtimes.com/articles/5078/20140406/augmented-reality-vs-virtual-reality-what-are-the-differences-and-similarities.htm ,

http://www.techrepublic.com/article/virtual-reality-vs-augmented-reality-debating-the-merits ,

http://techcrunch.com/2015/04/06/augmented-and-virtual-reality-to-hit-150-billion-by-2020/#.ityoap:miOR ,

http://www.theverge.com/2015/5/5/8546957/augmented-reality-vs-virtual-reality-hololens-oculus-rift-vive ,

http://the-loaf-etc.blogspot.ca/2015/06/vr-etc.html