- Abacus - Wikipedia
An abacus (pl abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects) In their
- Abacus | Definition, History, Origin, Facts | Britannica
Abacus, calculating device, probably of Babylonian origin, that was long important in commerce It is the ancestor of the modern calculating machine and computer The abacus was in universal use in Europe in the Middle Ages, as well as in the Arab world and in Asia
- Abacus - Simple English Wikipedia, the free encyclopedia
A English abacus, Suanpan Calculating-Table by Gregor Reisch An abacus or bead frame from a Danish elementary school An abacus is an old tool used for arithmetic It is still used in some parts of the world, and it is well suited for use in shops and street markets Sometimes blind people use an abacus, because they can feel the numbers easily
- How to Use an Abacus (with Pictures) - wikiHow
The abacus (the suanpan is the most useful variety) is a deceptively simple calculating tool still used all over the world It's a useful learning device for the visually impaired, as well as for anyone who wants to learn the roots of the modern calculator
- Abacus - New World Encyclopedia
An abacus (plurals abacuses or abaci), also called a counting frame, is a calculating tool for performing arithmetical processes, often constructed as a wooden frame with beads sliding on wires The user, called an abacist, slides counters by hand on rods or in grooves
- Abacus - Wikiwand
An abacus, also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russ
- Abacus Explained — Everything You Need To Know - History Tools
What is an Abacus? An abacus is a manual calculating tool used for adding, subtracting, multiplying, and dividing It consists of a frame with rods strung with movable beads Each rod represents a place value, with the rightmost rod representing the ones place You can visualize numbers and calculate by manipulating the beads along the frame
- Abacus - Wikimedia Commons
English: An Abacus is a calculation tool Français : Un abaque est un instrument facilitant les calculs Galego: Un ábaco é un instrumento de cálculo Norsk nynorsk: Ei Kuleramme er eit reknehjelpemiddel Русский: Абак, счёты Danish abacus from an elementary school
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