Teradyne, Inc. engages in the development and sale of automatic test systems. The company is headquartered in North Reading, Massachusetts and currently employs 6,500 full-time employees. The company designs, develops, manufactures and sells automated test systems and robotics products. Its segment includes Semiconductor Test, Robotics, and Product Test. The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services, inclusive of storage and system level test products. The Robotics segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms and autonomous mobile robots. The Product Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace test, circuit-board test, wireless test systems, and silicon photonics testing. Its offerings also include defense/aerospace test instrumentation and systems, circuit-board test and inspection (production board test) systems, and wireless test systems.