Write three technological revolutions and signs

The symbol of the industrial revolution is the use of the steam engine. On the basis of the existing steam engine, Englishman Watt invented an efficient steam engine. 1In the 1940s, steam engines were widely used in Europe and America. The steam engine drives the textile machine, blower, water pump and mill, which leads to the rapid development of textile, printing and dyeing, metallurgy and mining, and creates a technological miracle that people could not imagine before.

2. Power revolution

Logo: 1834, the first practical motor was born, and the motor entered the practical stage. At the same time, the generator is also in the development stage. The electric power revolution is the second technological revolution after the industrial revolution, which has brought great progress to human society. First of all, the power revolution has once again greatly promoted the development of social productive forces.

3. Information technology

Since the late 1940s, the third scientific and technological revolution marked by computer, atomic energy and space technology has begun. Since the 1940s and 1950s, major breakthroughs have been made in the fields of atomic energy, computers, microelectronics, aerospace, molecular biology and genetic engineering, marking the arrival of a new scientific and technological revolution. This scientific and technological revolution is called the third scientific and technological revolution.

Extended data:

Industry 4.0 (the fourth industrial revolution):

The so-called Industry 4.0 in Germany refers to the use of Cyber—Physical System (CPS) to digitize and intelligentize the supply, manufacturing and sales information in production, and finally realize fast, effective and personalized product supply.

The cooperation between Germany's "Made in China 2025" and "Industry 4.0" has a long history. 20/kloc-in may, 2005, the State Council officially released "made in China 2025", which made arrangements for comprehensively promoting the implementation of the strategy of manufacturing a powerful country.

Industry 4.0 has entered a new era of Sino-German cooperation. In the Sino-German Cooperation Action Plan signed by China and Germany, there are four contents about the cooperation of Industry 4.0. The first one clearly pointed out that the digitalization of industrial production is "Industry 4.0", which is of great significance to the future economic development of China and Germany. The two sides believe that the two governments should provide policy support for enterprises to participate in this process.

Baidu Encyclopedia-Technological Revolution