What is Importance of Data Structure?

What is important of data structure in our today's life and also tell me its applications?

Data structures importance/applications in Daily life :

1. In bank service rows of men follow the Queue data structure.
2. In online shopping, selection and cancellation in the list of items is done/maintained via data structures.
3. For representing a city region telephone network.
4. Used to store a set of fixed key words which are referenced very frequently.
5. DS are used to  represent an image in the form of a bitmap.
6. To implement back functionality in the internet browser.
7. To implement printer spooler so that jobs can be printed in the order of their arrival.
8. To record the sequence of all the pages browsed in one session.
9. To implement the undo function in a text editor.
10. To store information about the directories and files in a system