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  1. Abacus - Wikipedia

    Abacus-based mental calculation (AMC), which was derived from the abacus, is the act of performing calculations, including addition, subtraction, multiplication, and division, in the mind by manipulating …

  2. Abacus.AI - The World's First Super Assistant For ...

    Abacus Enterprise offers an enterprise-class AI super assistant for all your employees and the world's first Gen AI platform where AI, not humans, build Applied AI systems.

  3. How to Use an Abacus (with Pictures) - wikiHow

    Aug 6, 2025 · 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 …

  4. 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.

  5. What Is an Abacus? - Computer Hope

    Sep 7, 2025 · Meaning of the abacus, a mechanical device for performing mathematical calculations, its history, usage today, benefits of learning it, and usage instructions.

  6. Abacus | Definition, History, Origin, & Facts | Britannica

    Jan 9, 2026 · 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 …

  7. The Abacus and the Numeral Frame | National Museum of ...

    The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines. The instrument may have originated in the …