When people used abacus for some time they come to know about the variety it offers to its users. It is adoptable to different number systems and helps in calculation on any of them. Different civilizations used different number systems for calculation on abacus.

With the introduction of Arabic-Indian numerals, the calculations were made even much easy to do. Now this system was adopted very swiftly in different parts of the world and it was made possible to count things orally.

One feature which gives abacus a distinct place in the history is that to calculate on it, the proper knowledge of the number system is not necessary and it can be used by an illiterate person as efficiently as a literate one can do.

Despite the age of this tool it is till present in our daily lives because it lies at the very inside of our modern day electronic calculator. Its shape may have changed but the ideas it introduced to the mathematical aspects of human beings revolutionized the modern mathematical work.