Robot Operating System

The Robot Operating System (ROS) is an open-source framework for writing robot software, providing a flexible and distributed framework for building complex and robust robot behavior across a wide variety of robotic platforms. Developed originally at Willow Garage by Morgan Quigley and Ken Conley in 2007, later maintained by Open Robotics and now by the ROS 2 Working Group under Open Robotics (a subsidiary of Intrinsic, an Alphabet company), with over 10,000 stars as of 2026 across ROS and ROS 2 repositories. Key features include: distributed communication architecture (nodes communicating via publish-subscribe topics, service request-response, and parameter servers over a peer-to-peer network, enabling modular decomposition of robot systems), message types (standardized message definitions for sensor data including IMU, laser scan, point cloud, image, GPS, and joint states via sensor_msgs and geometry_msgs packages), transform library (tf2 for managing coordinate frame transformations across robot links, sensors, and world frames with temporal caching), navigation stack (move_base and Nav2 for autonomous mobile robot navigation with path planning, obstacle avoidance, costmaps, and SLAM integration), perception (PCL and OpenCV integration for 3D point cloud processing, object recognition, and image processing), simulation integration (Gazebo, Ignition, and Webots for physics-based robot simulation with ROS interface), hardware abstraction (ros_control for standard interfaces to actuators, sensors, and controllers across robot platforms), actionlib (preemptable task execution with feedback for long-running operations), lifecycle nodes (ROS 2 managed nodes with configurable states for reliable startup and shutdown), and quality of service (DDS-based transport with configurable reliability, durability, and history depth).