Question

This device was divided into two decks, Heaven and Earth. *

15point

a. Arithmometer

b. Analytical engine

c. Abacus

​

Answer 1

Answer:

Abacus

Explanation:

The abacus is divided into two main areas, the upper deck and the lower deck, or “heaven” and “earth” respectively. The two decks are separated by a horizontal crossbar called a beam or reckoning bar.

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