Douglas M. Yeaman’s
Biographic Portfolio
Page3
flop based binary computer that would add and
subtract, using the binary number system (see
photographs). He won first place in the Science
Fair and won a college scholarship and savings
bond.
At the age of 17 he built a electron tube,
flip-flop based binary computer that would add,
subtract, multiply and divide, using binary coded
decimal number system.
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