Nuclear Data Incorporated was a manufacturer of scientific measuring devices for high energy physics laboratories. Application areas included X-ray analysis and radiation monitoring. In the 1960s, they built minicomputers to automate their laboratory devices, such as the ND 812. Over time, they replaced these custom designed computers with DEC LSI-11 minicomputers with custom peripherals. Their headquarters were located in

Schaumburg, Illinois Schaumburg ( ) is a village in Cook County, Illinois, Cook and DuPage County, Illinois, DuPage counties in the U.S. state of Illinois. Per the 2020 United States census, 2020 census, the population was 78,723, making Schaumburg the most populou ...

. In May, 1973,

Bunker Ramo Bunker Ramo Corporation, often shortened to Bunker Ramo, was an American electronics company based in Trumbull, Connecticut. It was founded by George M. Bunker and Simon Ramo in 1964, jointly owned by Martin-Marietta and Thompson Ramo Wooldridge ...

acquired the Electronic Store Information Systems Division of Nuclear Data for $3.2 million in cash. The sale included a point of sale terminal business. On July 5, 1989, the company formally changed its name to Metropolitan Circuits, Inc., after having divested most of their business to other companies.

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Defunct computer hardware companies Defunct companies based in Illinois Defunct computer companies of the United States {{US-manufacturing-company-stub