Teradyne, Inc., together with its subsidiaries, provides automatic test equipment products and services worldwide. The company operates in three segments: Semiconductor Test, Systems Test Group, and Wireless Test. The Semiconductor Test segment designs, manufactures, and sells semiconductor test products and services. Its test systems are used for wafer level and device package testing. These chips are used in automotive, communications, consumer, computer, and electronic game applications. This segment provides its products to integrated device manufacturers (IDMs) that integrate the fabrication of silicon wafers into their business; fabless companies, which outsource the manufacturing of silicon wafers; foundries that cater to the processing and manufacturing of silicon wafers; and outsourced sub-assembly and test providers, which offer test and assembly services for the final packaged devices to fabless companies and IDMs. It also provides Magnum test platform that tests memory devices, such as flash memory and dynamic random access memory, as well as offers ETS platform for use by semiconductor manufacturers, and assembly and test subcontractors in the low pin count analog/mixed signal discrete markets. The Systems Test Group segment offers military/aerospace test instrumentation and systems; storage test systems for HDD manufacturers; and circuit-board test and inspection systems for electronics manufacturers of cell phones, servers, computers, Internet switches, automobiles, and military avionics systems. The Wireless Test segment designs, develops, and supports wireless test solutions for developing and manufacturing wireless devices, such as smart phones, tablets, notebooks/laptops, and personal computer peripherals. This segment offers cellular communication solution for verification and calibration of mobile devices; and products for connectivity testing. The company was founded in 1960 and is headquartered in North Reading, Massachusetts.