Chapter 1012: Cross-border phone number!

Wu Zhijun smiled and said, "Okay! What is a telephone? Who invented the telephone... I don't need to say this? Let me talk about the development of our country's telecommunications! Things before liberation were too far away! It was too chaotic during the Cultural Revolution! Let's start with before the reform and opening up!

In 1978, my country's telephone penetration rate was only 0.38%, which was less than 0 at the world level! Let's put it this way - our country accounts for 1/5 of the world's people, but the total number of phones we have is less than 1% of the total number of phones in the world! Is this more shocking comparison, right?"

I know that our country's telecommunications industry is behind! But I don't know that it is so backward! Qu Liang said in surprise: "The gap is really too big! I think the gap will be at least 20 years!"

Qu Liang thinks that at most, he will be 30 years behind! It’s just right to say that one is 20 years?

Who knew that Wu Zhijun smiled and said, "20 years? That's the starting price! Before the reform and opening up, our country had less than one phone in every 200 people! It was 75 years behind the United States! Instead of 20 years!

Moreover, the switches in our country are particularly backward! Most phones are still using 'shaking handles'! Long-distance transmission mainly relies on open lines and simulated microwaves... It is very difficult to make a long-distance! It doesn't matter if you don't have an hour or two! You haven't seen the people calling in the Telegram building and have to take lunch to queue up?"

When Wu Zhijun said this, Liu Yihua and Qu Liang couldn't hold back their smiles! This kind of laughter was a kind of helplessness and bitterness!

Qu Liang had a deep understanding of long-distance journey! At that time, if Liu Yihua wanted to take a long-distance journey, he had to tell Qu Liang one night in advance! Qu Liang had to start dialing when he got up early the next morning! The degree of difficulty can be imagined!

Liu Yihua sighed: "Our backwardness is all-round! As far as I know, in 1970, the world's first programmable digital switch was launched in Paris, France! This marks the arrival of a new era of digital communications! In 1970, Denmark used button phones for the first time... This phone uses digital buttons instead of the original dialing method.

Look, how much behind our country? But now! At least we can solve the communication problem in Laixi County! As for the whole country, I think it will be difficult to popularize telephone numbers without ten or eight years!"

This time, Liu Yihua bought a large number of button-type phones! These phones have many functions! Such as phone number memory function, redial function, monitoring function, 24 ringtones, etc. But most of our country still have dialing phones! There are also a very small number of shaking phones!

Wu Zhijun was surprised and said, "Yihua, I didn't expect you to understand the development of the telecommunications industry so well! However, the telecommunications industry in our country is very strong! Some aspects are already at the world's advanced level! For example: fiber optic communication! In 1979, our country's first fiber optic communication system was built in Beijing! A pair of metal telephone lines can only transmit more than 1,000 channels of telephone at the same time. According to theoretical calculations, a pair of optical fibers as thin as spider silk can communicate with 10 billion channels of telephones at the same time! It takes about 500 tons of copper to lay a coaxial cable of 1,000 kilometers, and it only takes a few kilograms of quartz to switch to fiber optic communication. The sand and stone contain quartz, which is almost inexhaustible!"

Liu Yihua said mysteriously: "I know why our country's optical fiber communication is so developed! Because, the one who invented the fiber cables was the Chinese scientist Kao, known as the "father of fiber optic cables,"! Let me tell you good news. Kao has worked at the Hong Kong Island Research Institute of Zhenghua Group! Moreover, due to the abundant funds... his R&D work has made breakthrough progress! Now, Zhenghua Special Economic Zone will set up a company specializing in the production of fiber optics! In this way, our country's communications industry will surely develop rapidly! At the same time, we can also make our contribution to the development of the world's telecommunications industry! Of course, we cannot contribute in vain! You need money!"

Speaking of Kao, Liu Yihua, later generations, admired him very much! Kao was the winner of the Nobel Prize in Physics! He was born in Shanghai in 1933, moved his family to Hong Kong Island in 1948, and then studied for a Ph.D. in the University of London. In 1966, Kao proposed the bold idea of ​​replacing copper wire with glass! Later, after his unremitting efforts, he finally invented optical fiber! This invention changed human life!

Of course, such a powerful person has to find ways to dig it up! It can cost as much as possible! He can do whatever his conditions are required!

After hearing Liu Yihua's words, Wu Zhijun didn't react for a long time... Suddenly he shouted: "What? Kao came to Zhenghua Group? Zhenghua Special Economic Zone wants to produce optical fibers? This... I'm not dreaming!"

Liu Yihua patted Wu Zhijun hard and said, "Director Wu! You are not dreaming! This is all true! Next, our Laixi County and Zhenghua Special Economic Zone will use the optical fibers we produce to lay a net of heaven and earth! Then, our fiber network will gradually expand! It will radiate to the whole country and the whole world!"

As a reborn person, Liu Yihua certainly knows the power of fiber optic networks! If you have the conditions to lay fiber optics, don’t waste ordinary cables and telephone lines! There is copper in it! It’s so wasteful!

Wu Zhijun said excitedly: "That's great! Then all our main lines use optical fibers! That will save a lot of telephone lines! But Yihua, optical fibers are very expensive! In terms of funds..."

Liu Yihua waved his hand and said, "Use optical fibers on the main line? No!"

Seeing Wu Zhijun smiled bitterly... Liu Yihua smiled again: "Not only the main line! The branch line must use optical fiber! And in the Zhenghua Special Economic Zone, optical fiber must be used!

To put it simply, my request is:

fttb--fiber-to-the-building!

fttc--fiber-to-the-curb!

ftth--fiber-to-the-home!”

Liu Yihua's bold words... made the first world's most advanced fiber optic communication network system!

Three days later, the digital program-controlled switch of the Telecommunications Building in Zhenghua Special Economic Zone was debugged!

Liu Yihua called a phone number in the computer room with excitement... and then said: "Chu Hua, it's me!"

"Ah, Yihua? Where are you...?" a girl said in surprise!

Liu Yihua smiled and said, "Traveling through time and space...I finally found you!"

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(To be continued  89 free novel reading "")
Chapter completed!