Title: Read it.
Course: Personal Computer Hardware > Section: Competencies

3.1 Explain the basic features of mobile operating systems. | Chapter | Page
Android vs. iOS | 27 | 1038
Open source vs. closed source/vendor specific | 27 | 1041-1043
App source (app store and market) | 27 | 1041-1043
Screen orientation (accelerometer/groscope) | 27 | 1038
Screen calibration | 27 | 1037
GPS and geotracking | 27 | 1040-1041