Google Drive is like a "hard drive in the sky". You can store ANY type of file there, and access it from almost any device that has an internet connection. You are only able to directly edit Google files (Docs, Slides, Sheets, etc) in Drive, but with a G Suite account (which is attached to your M-E or Windsor email address), you have UNLIMITED storage space.
An Introduction to Google Drive
Creating New Files in Google
Uploading Files to Google Drive
Converting Files in Google Drive
Sharing Files in Google
Files Shared with Me in Google Drive