Data handling is used for organising ur data properly
1)In libraries -To keep record of books.
2)Doctors keep records of patients
3)Meteorologists take records of the weather
4)Astrologists record the movement of stars
5)For recording water levels in rivers.
6)For recording the economical income of each household.
7)For recording on a graph, the progress you have made in your studies
Hope it hepls..!