"Google Drive and Docs are the components of an integrated service that provides a single place to store, access, create, edit, and share documents, files, and folders of all types.
Google Docs refers to the web-based editors to create, edit, and share Google documents, spreadsheets, presentations, drawings, and forms. These online documents are tightly integrated with other Google Apps services and provide very powerful real-time collaboration features.
Google Drive is a single place to manage all your files, including Google Docs.With Google Drive, you can access files, folders, and Google Docs from a web browser or any device where you've installed your Google Drive. No matter what happens to your devices, your files are safely stored in Google Drive.