Jesse Dilson: 1 book
The Abacus
The World's First Computing System: Where It Comes From, How It Works, and How to Use It to Perform Mathematical Feats Great and Small
Language: English
Release Date: July 30, 2013
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)...
