Google Drive is a cloud storage service. In addition to files created in Google (e.g. Docs, Sheets, Slides, Forms, etc.), Google Drive can store any kind of file: photos, videos, .pdfs, Microsoft Office files — anything. You can also save email attachments sent to you through Gmail directly to Google Drive, which saves you from having to make the move manually.

A Shared Drive is a shared space where:

• Members of a shared drive share ownership of any files and folders.
• If someone leaves the shared drive, any files they added will stay.
• You can still share files with a link or invite.