Friday, August 19, 2011
It's Texas Instruments (TI) - Those are the pics of the 4 founders (Cecil Green, Erik Jonsson, Eugene McDermott and Patrick Haggerty), GSI or Geophysical Service Inc was the parent company of TI before the name change. GI stands for General Instrument, another company which existed at that time. As a result, they had to name the company as General Instruments before the name changed to Texas Instruments.
Answered correctly by Anand Shankar, Anonymous (huh?) and Satish I (via Buzz).