Question 238 of 319

The pre-computing age device which made use of beads and frames is?     

  • A. Abacus
  • B. Napier's bone
  • C. Liebnitz multiplier
  • D.  Burrough's counting device

Correct Answer: A

Explanation
The correct option is A. Abacus. Detailed Explanation:
  1. Understanding the Abacus:
  2. The abacus is one of the earliest known calculating devices, dating back thousands of years. It consists of a frame with rods or wires on which beads are strung. The beads can be moved back and forth to represent numbers and perform arithmetic operations such as addition, subtraction, multiplication, and division.
  3. The design of the abacus can vary, but the basic principle remains the same: it uses physical manipulation of beads to represent numerical values.
  4. Why the Abacus is Correct:
  5. The abacus is specifically designed for counting and calculations, making it a pre-computing age device that effectively uses beads and frames. The beads represent different values, and their movement allows users to perform calculations manually.
  6. It is widely recognized as a foundational tool in the history of computing and mathematics, illustrating the early human effort to simplify numerical operations.
  7. Why the Other Options are Incorrect:
  8. B. Napier's Bone:
    • Napier's bones are a set of rods that were used for multiplication and division. They were invented by John Napier in the early 17th century. While they are a calculating device, they do not use beads and frames in the same way the abacus does. Instead, they consist of a series of rods with numbers inscribed on them, which are used to perform calculations.
  9. C. Liebnitz Multiplier:
    • The Leibniz multiplier, developed by Gottfried Wilhelm Leibniz, is a mechanical device designed for multiplication. It is more complex than the abacus and does not utilize beads and frames. Instead, it employs gears and levers to perform calculations, making it a more advanced device than the abacus.
  10. D. Burrough's Counting Device:
    • The Burroughs counting device refers to a series of mechanical calculators developed by the Burroughs Corporation in the late 19th and early 20th centuries. These devices were designed for more complex calculations and did not use beads and frames. They were more akin to early adding machines and were not used in the same manner as the abacus.
Summary of Key Points:
  • The abacus is a pre-computing age device that uses beads and frames for calculations.
  • It allows for manual arithmetic operations through the physical movement of beads.
  • Other options like Napier's bones, the Leibniz multiplier, and Burrough's counting device do not fit the description of using beads and frames.
  • Understanding the historical context of these devices helps clarify their functions and differences.
Revision Summary:
  • The abacus is the correct answer as it uses beads and frames for calculations.
  • Other options involve different mechanisms and do not fit the description.
  • The abacus represents an important step in the evolution of computing devices.
  • Familiarity with historical devices enhances understanding of modern computing concepts.
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