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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 …

  2. Abacus.AI - ChatLLM Teams

    One AI Assistant To Rule Them All. Use One AI Assistant To Access All The SOTA LLMs

  3. Home | Abacus

    IT'S WHAT WE DO. Abacus serves a wide and growing group of industries. Our employees can be found supporting clients of all types. Click and view many of the industries where we have …

  4. 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 …

  5. 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 …

  6. 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 …

  7. ABACUS Definition & Meaning - Merriam-Webster

    Probably of Babylonian origin, an abacus is a calculating instrument that uses beads that slide along a series of wires or rods set in a frame to represent the decimal places. It is the ancestor …