Teradyne is engaged in the development and sale of automated test systems, operating through several business units: semiconductor testing, system testing, robotics, wireless testing, and corporate services. The semiconductor testing division focuses on the design, manufacturing, and sale of semiconductor testing products and services. Meanwhile, the system testing unit provides products and services for defense/aerospace, storage testing, and production board testing sectors. The robotics division encompasses operations related to the design, manufacturing, and marketing of collaborative robotic arms, autonomous mobile robots, and advanced robotic control software. Additionally, the wireless testing department specializes in wireless testing products and services. The company also explores other automated testing systems and robotic products.