7. The Abacus: Early Computing Power
Long before digital calculators, the abacus emerged in ancient China as an ingenious tool for arithmetic. This simple yet powerful device enabled merchants, scholars, and officials to perform complex calculations quickly and accurately. The abacus not only revolutionized trade and accounting, but also laid early foundations for computational thinking. Modern calculators and computer algorithms carry forward the spirit of this ancient invention, demonstrating how basic principles of logic and efficiency continue to drive technological progress.
