Abacus is a simple tool which was used in ancient times for calculating numbers through basic arithmetic system. For many centuries different races, cultures and countries have played an important role in the development of the tool. Different varieties of Abacus were developed, like Nepohualtzintzin in ancient Mayan culture during 900 B.C to 250 B.C) which used 5 /20 base, and the finally Soroban abacus was developed by Japan having 1/4 base which is widely used today. In the last 2 decades it has changed its status from just being a calculating device to brain development tool.
0 comments:
Post a Comment