The development history of electronic components is actually a condensed history of electronic development:
Electronic technology is an emerging technology developed at the end of the 19th century and the beginning of the 20th century. In the 20th century, it developed the most rapidly and was widely used. It has become an important symbol of the development of modern science and technology.

The first generation of electronic products was based on the electronic tube. At the end of the 1940s, the world's first semiconductor triode was born. It has the characteristics of small size, light weight, power saving and long life. It was quickly applied by various countries and replaced the electronic tube in a large range. In the late 1950s, the world's first integrated circuit appeared, which integrated many electronic components such as transistors on a silicon chip, making electronic products more miniaturized. Integrated circuits have rapidly developed from small-scale integrated circuits to large-scale integrated circuits and ultra-large-scale integrated circuits, thus making electronic products develop in the direction of high efficiency, low consumption, high precision, high stability and intelligence.

Since the four stages of electronic computer development can just fully explain the characteristics of the four stages of electronic technology development, the following describes the characteristics of the four stages of electronic technology development from the four eras of electronic computer development.

The world's first electronic computer was successfully developed in the United States in 1946, named ENIAC (Electronic Numerical Integrator and Calculator). This computer uses 18,800 electronic tubes, covers an area of ​​170 square meters, weighs 30 tons, consumes 140 kilowatts of electricity, and costs more than $400,000. It is an expensive power-hungry "monster". Because it uses electronic circuits to perform arithmetic operations, logical operations and store information, the operation speed is greatly improved. ENIAC can perform 5,000 additions and subtractions per second, reducing the time required to calculate a trajectory to 30 seconds. It was originally used exclusively for ballistic operations, and later it has been improved many times to become a general-purpose electronic computer that can perform various scientific calculations. From its delivery in February 1946 to the final cut-off in October 1955, ENIAC served for nine years.

Despite its many weaknesses, ENIAC remains a monumental milestone in the history of human computing tools. Its success has opened up extremely broad possibilities for increasing computing speed. Its advent, indicating the arrival of the era of electronic computers. Since then, electronic computers have developed by leaps and bounds on the road of liberating human intelligence. Compared with the steam engine in the first industrial revolution, the role played by electronic computers in human society is more than that.