An interesting history of the invention of the calculator

This is what we have a powerful computer and calculator to calculate. These electronic devices run on electricity. But even when the use of electricity was not discovered, some scientists developed tools for calculations and laid the foundations of mechanical calculators. It is also interesting to talk about these devices that run without electricity.

Is. The world's first efficient calculator was created in 1918 by a scientist named John Napier. It is said that this man was insane. He wrote various figures on a long piece of wood so that the number could be multiplied, divided, added, subtracted quickly by turning the wood backwards.

Calling this tool a logarithm. Training is required to use this tool. Another similar instrument was the abacus, rounded on a long rod. Both of these discoveries led to the simplification of calculations.

A German scientist named Wilhelm Schiorde A calculator like the clock in the 18th can be calculated by rotating its donations and arranging different numbers. Is. In the 19th century, Blaise Pascal built a machine that could subtract the sum of 5 digits. It had different chakras. Rotating one cycle rotates the other cycles in proportion to it and the figures written on it are arranged accordingly to get the answer.

Wilhelm Leibniz created a calculator with 10 bells. Calling it step reckoner. Arranged in such a way that the beaks written on a horizontal cylinder can move simultaneously. The decimal system originated with this machine. All these machines did not use electricity. Hand operated. Today these machines look like toys but these toys played a key role in the invention of computers and calculators.