Explore recent developments, innovations, and case studies within the assigned area of research. Gather relevant information, and give examples and industry insights.

research area chosen is mobile computing, select ONE Operating System $($OS$)$ for that research area and EACH member in a group must select at least ONE specific topic from the given analysis:

$a)$File Management System

b$)$ Process Control management Describe how this topic is handled in your selected operating systems $($all of which address it to some extent$).$ Discuss the mechanism of the chosen OS and elaborate more.