The type of manual calculator first used in ancient Rome,Greece,India,China,and Japan is called a(n)____.

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The abacus is an ancient calculating tool that was used in various parts of the world, including Rome, Greece, India, China, and Japan. It consists of beads or counters on rods or wires, which can be moved up and down to perform mathematical operations. The other options listed were not used in ancient times, or were developed much later.

The Type of Manual Calculator First Used in Ancient Rome,Greece,India,China,and