Google Drive is a cloud storage and synchronization service developed by Google that allows users to store files and access them from any device. It provides 15GB of free storage that can be used to store photos, videos, documents and any other file type. Files stored in Drive can be accessed from any device and shared with other users to view, download or collaborate. Google Drive also integrates with other Google productivity apps like Docs, Sheets and Slides to allow real-time collaboration on documents, spreadsheets and presentations. In emergency situations like hard drive crashes, Google Drive provides a backup of all user data.