1650 The Slide Rule

 MIThril, a borglab production. Richard W. DeVaul, Jonathan Gips, Michael Sung, Sandy Pentland

slip-stick analog
The first slide rule was created by two Englishmen, Edmund Gunter and the reverend William Oughtred. The slide rule was based on John Napier's logarithm's. The Slide Rule was the first modern analog computer. http://www.webcom.com/calc/ "Abacus and Slide Rule"

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A Short History of Wearable Computers
Bradford J Snow and Richard W. DeVaul
The second annual "I Wanna Be a Cyborg" event, a borglab production.