The calculator is a machine invented in modern my country that can perform number calculations. It is a great invention and also marks the progress of human society. The first-generation electronic calculator is a handheld calculator that can perform mathematical operations. Its price is relatively cheap and its functions are relatively simple. It is widely used for commercial purposes and brings great benefits to the mathematical calculations in daily work. It is convenient and popular with businesses, and later penetrated into the homes of ordinary people and became a universal calculation tool for thousands of households.
The power supply of the calculator adopts an AC converter or battery. Now the battery has introduced a rechargeable battery. This is another major advancement in technology and a major contribution to the cause of environmental protection on the earth. Generally speaking, considering the convenience of saving power, calculators generally use large-scale integrated circuits made by CMOS technology. Its biggest feature is: stability, accurate calculation results, easy to carry, and low price. The components of the calculator are composed of a controller, arithmetic unit, keyboard, display, memory, power supply, electronic accessories and optional peripherals. It can be said that the development of calculators is a major advancement in human history. From the most primitive knotting method, abacus, counting chips, etc. are all purely manual calculation methods. From 1642, when the great French scientist Pascline was only 19 years old, he invented the first mechanical calculator, which brought tremendous changes to the world economic field. The evolution to the current computer is a leap forward. With the advent of computers, handheld calculators have been gradually replaced by web calculators. In a broad sense, computers also include calculators. This is a software form of calculator with larger functions and more convenient use. Both PC and mobile terminals can be used at any time. Computers, mobile phones, and tablets can all use this kind of smart calculator. This is the general term soft-smart calculator, which can be subdivided into three categories: comprehensive function calculators, common calculators and special calculators. Generally, arithmetic calculators in common calculators are commonly used.
It can be seen that the emergence of calculators to computers represents a major advancement in human science and technology. It is an experience of the progress of human civilization, and the economic benefits brought to mankind are enormous.
