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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. 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 …

  3. Find Jobs I Search Positions I Abacus Corporation | Abacus

    Abacus supports many of the nations leading employers by providing temporary, temp to perm, and permanent placements. To join our family of more than 25,000 teammates throughout the …

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

    Oct 11, 2025 · 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 …

  5. HOME - Abacus Technology

    Abacus Technology offers a full spectrum of information technology support integrated with professional services in software, systems, management, communications, and engineering …

  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. 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.