what is the name of the robotic arm used by astronauts

The robotic arm used by astronauts is called the Canadarm or Remote Manipulator System arm. It was developed by the Canadian Space Agency and was used to move payloads and position astronauts working outside the Space Shuttle or International Space Station. The Canadarm has shoulder, elbow, and wrist joints plus an end effector that serves as a grappling hand. Television cameras mounted on the arm assist the operator in precisely controlling its movements. The European Robotic Arm is another robotic arm installed on the ISS Russian Segment.