While Texas Instruments is named after the Lone Star State, its roots belong in New York City. Karcher worked at New York-based Amerada Petroleum before founding GSI, while fellow co-founder Eugene McDermott taught at Columbia University. The articles of incorporation were first filed in New Jersey in May 1930.
A readout from a reflection seismograph, which provided more details about substructures than previous equipment. John Karcher, one of TI's two founders, pioneered reflective seismology in the 1920s.


















