“Nikola Tesla designed and built the first electronic binary logic gate circuits...these logic circuits were the first step toward the modern binary digital computers.
After World War II when computer hardware manufacturers attempted to patent digital logic gates in general, the U.S. Patent Office asserted Teslas turn-of-the-century priority in their electrical implementation. These same patents also describe essential features of the spread-spectrum wireless communications techniques known as frequency-hopping and frequency-division multiplexing.
Thank you ,My Dad was a fan of his.
She's also much easier to look at than Tesla.
Tesla was a smart guy, but there were others
In 1936, Zuse made a mechanical calculator called the Z1, the first binary computer. Zuse used it to explore several groundbreaking technologies in calculator development: floating-point arithmetic, high-capacity memory and modules or relays operating on the yes/no principle. Zuse’s ideas, not fully implemented in the Z1, succeeded more with each Z prototype.
In 1939, Zuse completed the Z2, the first fully functioning electro-mechanical computer.
http://inventors.about.com/library/weekly/aa050298.htm
and in 1937 - Iowa State Colleges John Vincent Atanasoff and Clifford Berry begin work on creating the binary-based ABC (Atanasoft-Berry Computer). Considered by most to be the first electronic digital computer. An interesting side note, these fellows were HAM operators. didahdidahdidah.
http://www.computerhope.com/history/190040.htm
And in 1939 George Stibitz completes the Complex Number Calculator capable of adding, subtracting, multiplying and dividing complex numbers. This device provides a foundation for digital computers.
Then things start to get busy...