Google Docs is a word processor included as part of a free, web-based software office suite offered by Google within its Google Drive service. This service also includes Google Sheets and Google Slides, a spreadsheet and presentation program respectively. Google Docs is available as a web application, mobile app for Android, iOS, Windows, BlackBerry, and as a desktop application on Google’s ChromeOS. The app is compatible with Microsoft Office file formats.The application allows users to create and edit files online while collaborating with other users in real-time. Edits are tracked by user with a revision history presenting changes. An editor’s position is highlighted with an editor-specific color and cursor. A permissions system regulates what users can do. Updates have introduced features using machine learning, including “Explore”, offering search results based on the contents of a document, and “Action items”, allowing users to assign tasks to other users.