Electronic technology is an emerging technology that began to develop in Western countries such as Europe and the United States in the late 19th and early 20th centuries. It was first invented by American Morse in 1837, by Alexander Bell in 1875, and by British physicist Fleming in 1902. Electronic products have developed rapidly and been widely used in the 20th century, becoming an important symbol of modern scientific and technological development.

The first generation of electronic products was centered around electronic tubes. In the late 1940s, the world's first semiconductor transistor was born, which was quickly applied by various countries due to its small size, lightweight, energy-saving, and long lifespan, replacing electronic tubes on a large scale. In the late 1950s, the world's first integrated circuit appeared, which integrated many transistors and other electronic components on a silicon chip, leading to the development of electronic products towards miniaturization. Integrated circuits have rapidly developed from small-scale integrated circuits to large-scale integrated circuits and ultra large scale integrated circuits, leading electronic products towards high efficiency, low consumption, high precision, high stability, and intelligence.

Due to the fact that the four stages of electronic computer development can fully illustrate the characteristic

s of the four stages of electronic technology development, the following will explain the characteristics of the four stages of electronic technology development from the four eras of electronic computer development.

DLEMO BEARING GROUP CO., LTD. was established in 1954.The technical expertise has evolved into engaging 1500 plus engineering personnel and 7000 manufacturing associates. The product range is divided into nine individual categories with more than 10000 different variants the bearings range extends from IDs of 8mm up to a maximum OD of 13.5 metres. As a world class bearing manufacturer LYC takes pride in their quality and maintains their quality assurance certifications namely ISO 9001,ISO 14001,OHSAS18001,TS16949 AS9100B and AAR, LYC currently produce a number of bearing classes including the P2 class with ranging from 8mm weighing 25.4g to maximum OD of 13.5 meters with a weight at 32 metric tons. Some of these bearings can consist of as many as 2386 individual components.

Our mission has been and continues to be to provide its customers with fully integrated solutions these include Design & Development Manufacturing Testing & Evaluation and an After Market Service that is second to none.