Books :The Abacus: The World´s First Computing...

Angelia Pozzi wrote: The Abacus: The World´s First Computing System.The abacus is as useful and effecient a machine today as it was when it was first created centures ago. Whether you´re an expert in the latest computer technology or you´re mastering arithmetic and word problems for the first time, it won´t take long to learn the basics (and even the not-so-basics) of adding, subtracting, multiplying, and dividing on this ingenious and fun-to-use mathematical...

Robert Googly has found the following links on Books relating to Computers & Technology; on Books relating to Mathematics; interesting.