View source for User:Sks23cu ← User:Sks23cu You do not have permission to edit this page, for the following reason: You are not allowed to execute the action you have requested. You can view and copy the source of this page. In Tokyo in 1964 I bought a Soroban with Kojima’s book "The Japanese Abacus: Its Use and Theory". An event that sparked my interest in abaci ... and in computers. After getting my M.Eng.(Elect.) at [http://www.cornell.edu Cornell], my 30 year career included working on the design and construction of nuclear power plants, missile systems software engineering, and industrial and engineering computer systems sales and systems engineering. Deciding to become a high school math teacher at the end of 2000, I took a History of Math course as part of my M.Ed. Program at [http://www.uml.edu UMassLowell]. I was struck by how easy it would be to use ancient Roman, Greek, Egyptian, and Babylonian numerals to record abaci calculation results. Prof. Gonzalez said, "Yes, but how would you do multiplication and division?" So as a hobby, I've worked the last 10 years to (re)discover the schematics and rules of the the Ancients used to do their accounting and engineering to support and empower the greatest empires in human history. I hope you find [[Ancient Computers|Ancient Computers]] interesting and useful, Steve Stephenson, M.Eng.(Elect.), M.Ed.<br>Math Teacher (precalculus and calculus)<br>Lowell High School, MA <br> http://sks23cu.net/MT/<br>July 15, 2010 (Retired 6/30/2013) P.S.: Before you edit [[Ancient Computers|Ancient Computers]], please be sure you read and understand the whole article and the [[Ancient Computers#Works_Cited|Works Cited]], and have watched and understand all of [[Ancient Computers#Works_Cited|Stephenson]]'s videos. P.P.S.: Also available as of 7/15/2013 are paperback and eBook versions of [[Ancient Computers|Ancient Computers]] with essentially the same content (see [http://sks23cu.blogspot.com/2013/07/links-to-my-book-dvds-ancient-computers.html Links]). Because it's much easier to modify, updates will first show up on http://ethw.org/Ancient_Computers. Return to User:Sks23cu. Retrieved from "http://ethw.org/User:Sks23cu"