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“abacus”

1. A manual computing device consisting of a frame holding parallel rods strung with movable counters: Before numbers were even developed as such, counting devices were used to perform everyday calculations; one of these devices was the

2. A calculator that performs arithmetic functions by manually sliding counters on rods or in grooves: A more recent form of the

*abacus*, which provided merchants accurate data when buying or selling products.2. A calculator that performs arithmetic functions by manually sliding counters on rods or in grooves: A more recent form of the

*abacus*consists of a frame often made of wood which firmly holds a set of rods or wires with freely sliding beads mounted on them.The *abacus* as we know it today doesn't appear as it did when it was originally invented. In ancient times, the *abacus* was a simple device that was used to count numbers; this only included addition and subtraction.

The newer *abaci* contain four decks, in which more complex operations can be made; including multiplication and division and they include instructions for determining square roots and cubic roots of numbers.

*abaci*and their edge profiles varied in the different Greek and Roman classical orders. 4. Etymology: a Latin word from the Greek word*abax*, "counting table". The original*abaci*were created in sand.
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“abacus”

(Hebrew > Greek > Latin > Middle English: dust)

Word Entries at Get Words:
“abacus”

abacus

An early form of hand-operated calculator that used movable beads strung along parallel wires inside a frame.

This entry is located in the following unit:
Science and Technology Words from the Ancient Past to the Present, Part 1
(page 1)