An IMU, or Inertial Measurement Unit, is a device that measures and reports a body's specific force, angular rate, and sometimes magnetic field. It typically consists of accelerometers, gyroscopes, and sometimes magnetometers, which work together to provide data about motion and orientation. IMUs are widely used in various applications, including robotics, aerospace, and smartphones. IMUs play a crucial role in navigation and stabilization systems. For example, in drones and self-driving cars, they help maintain balance and track movement. By processing the data from the IMU, these systems can make real-time adjustments to ensure accurate positioning and control.