Douglas M. Yeaman’s
Biographic Portfolio
Page4
flip-flop based binary computer that would
add, subtract, multiply and divide, using
binary coded decimal number system. He
won first place in the Science Fair, and a
scholarship and an opportunity to work with
Hercules Powder company, under David
Cholley, as they as a team constructed the
then largest analog computer west of the
Mississippi (see photographs).
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