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This year is the 70th birthday of our motherland. In this wave of development, science and technology as the primary productive force has played a huge role in its name.

Overview of the development of China’s technology, IT has experienced a process from scratch. In the field of communication, from the first e-mail, to the 5G era; in the storage field, from paper records to the cloud era; relying on the development of computers, enterprises and talents continue to emerge.

5G strikes, communication lays the foundation

In September 1987, Professor Wien of Germany issued the first e-mail in China, “Through the Great Wall, Going to the World”, which indicates that the Internet era has quietly slammed China’s door.

In 1987, the Guangdong National Games officially launched the mobile communication system to open the Chinese 1G voice era. Big Brother became the first choice for civilian use. Behind the division of A and B networks is Ericsson and Motorola, which dominate the analog era. However, due to its shortcomings of easy serial number and hacking, it was officially closed in 1999.

In 1995, the new communication technology became more and more mature. Under the guidance of Chunghwa Telecom, China officially entered the 2G text era and began the earliest text message. Nokia introduced the first mobile phone model 7110 that supports WAP, marking the beginning of the mobile Internet era. However, the 2G transmission rate is low, the network is unstable, and the maintenance cost is high.

The arrival of the 3G image era. Under the coverage of 3G, video telephony and mass data transmission are more convenient, and mobile communication is also applied under more diverse scenarios. Therefore, 3G is regarded as the key to opening a new era of mobile communication.

201In the past three years, the Ministry of Industry and Information Technology has issued “4G” licenses to the three major operators, and the 4G fast network era has arrived. Today, 4G signals cover a wide range of applications, meeting almost all users’ requirements for wireless services.

In 2017, the 5G era was launched, and the country’s first 5G test base station was opened. On June 6, 2019, according to CCTV, the Ministry of Industry and Information Technology issued the fifth-generation mobile communication service license (ie 5G commercial license) to China Telecom, China Mobile, China Unicom and China Radio and Television.

(Image from the web)

At present, communication has developed quite maturely. At the same time, the storage world is growing stronger.

Clouds along the way, storage helps development

Storing these things is a long history.

Through the era of paper record storage, it was the early Western Han Dynasty 2,200 years ago, when there was already rough paper. In 105 AD, Cai Lun summed up the experience of the predecessors, improved the papermaking, and became the recognized “the originator of modern papermaking.”

Later, I entered the era of punch storage. (Punch card, also known as punch card, is a piece of cardboard that uses holes and holes to represent digital messages in a known location.)

In 1725, the French invented the punch card; in 1801, the punched paper tape was first formed. In 1890, the punch card watch machine was invented. Since then, the watchmaker company was founded in 1896, is the predecessor of IBM.

(Left: Papermaking Right: Punch Card)

Recording tape, a tool for storing analog signals, was introduced in 1928.

After four years (1932), drum content (the predecessor of the hard drive) was born.

In 1942, the world’s first electronic computer, ABC, becameWork is tested.

In the years that followed, the first random access digital memory—the SELECTRON tube, the delay line memory, and the core memory—had appeared in people’s field of vision. It is more well known that it might be used for computers for the first time in 1951. A tape that stores data, but as early as 1928, the tape already existed, but it was mostly used for sound recording.

In 1956, the world’s first hard drive appeared on IBM’s RAMAC 305 computer.

In 1994, a DVD defined as “Digital Video Disc” appeared. By 1995, DVD was redefined by IBM as a “digital versatile disc” (with a high-capacity disc standard).

In 1999, the SD card jointly developed by Matsushita, Toshiba and SanDisk of the United States was developed from the 1997 MMC card.

(Left: Tape: DVD Right: SD Card)

Today, cloud storage has been immersed in the enterprise, and major companies have also launched the cloud business unit, trying to catch up with the cloud road.

Computer is born, IT is fully upgraded

1937, American scientist Atanasov Berry designed the world’s first electronic computer, which was only used to solve linear equations, not Programming and successfully tested in 1942. After half a century, it was recognized as one of the IEEE milestones.

February 14, 1946, on this romantic Valentine’s Day, the world’s first general-purpose computer named “ENIAC” was born. The inventors, Mokley and Eckert, both of whom were Americans, were originally developed by the US Aberdeen Weapons Test Site to meet the computational trajectory needs.

Even if the naming of the first computer name is still inconclusive, it is undeniable that the computer is like a hurricane