Just Arithmetic

How to introduce a child with arithmetic and explain that this is not boring at all? This will help a new book from the popular series "just ...".
Perhaps our distant ancestors have not yet owned a speech, but they already knew how to count. The account is an oldest intellectual operation, which has mastered humanity. How did the Egyptians and Sumerians, Greeks and Romans considered? How did the receptions of the accounts in the Middle Ages develop and in a new time? How were the first computers invented? Which of the geniuses contributed to the science of the account?
The history of computing is not completed, and it is unlikely that ever ended in the living people world.
Candidate of Fiz.-Mat. Mikhail Akhmanov - is also known as the author of fantastic novels, it is not surprising that he managed to very fascinating how the arithmetic from the bones was developed, from the pebbles, counting sticks and abacus to the mechanisms from rollers and wheels and the first electronic computers