Google Drive is a collaboration and online storage platform*.
As a Google Apps Edu user, your @southern.edu account has unlimited storage.
Docs vs. Drive
Google Drive is a storage platform as well as a way to view and interact with Google Docs. The two products are very closely related. Specifically, Google Docs are productivity applications like: Docs (word processing), Sheets (spreadsheets), and Slides (presentations).
For detailed information about using Google Drive, please visit the following link:
Tutorial information for the productivity apps is available here:
*All files edited with, or stored on, the Google Apps platform are subject to the Information Classification Policy.