Mainframe Computer Component, CG24 Circuit Board, Flip Flop DM-6


In the years following World War II, MIT established Lincoln Laboratory in Lexington, Massachusetts, to carry out research projects for the U.S. military. These included building the CG24, a transistorized computer that could simulate real time conditions. Designed and built in 1956 and 1957, it ran from 1958 until being scrapped in 1966-67. The CG24 was installed in Westford, Massachusetts, to interpret data from a tracking radar on Millstone Hill. Initially intended to track incoming missiles, the radar and computer also followed artificial satellites and measured lunar features.

Some twenty-four components of the CG24 are included in accession 304346, most of them individual circuit boards.

This green board is marked: Flip Flop D M - 6. It also is marked: 190. A mark on an attached paper tag reads: Flip Flop DM-6 (not one of the general- (/) purpose units).

Date Made: 1958

Maker: Lincoln Laboratory, MIT

Location: Currently not on view

Place Made: United States: Massachusetts, Lexington

See more items in: Medicine and Science: Computers


Exhibition Location:

Credit Line: Gift of Massachusetts Institute of Technology Lincoln Laboratory

Data Source: National Museum of American History

Id Number: CI.333912Catalog Number: 333912Accession Number: 304346

Object Name: computer component, mainframemainframe computer component

Measurements: overall: 1.5 cm x 14.5 cm x 16 cm; 19/32 in x 5 23/32 in x 6 5/16 in


Record Id: nmah_1398125

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.