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Wu Zhijun smiled and said: "Okay! What is a telephone and who invented it... I don't need to talk about it? Let me talk about the development of our country's telecommunications! Things before liberation are too far away! It's messed up! Let's talk about it before the reform and opening up!
In 1978, my country's telephone penetration rate was only 0.38%, which was lower than the world level of 0! Let's put it this way - our country accounts for 1/5 of the world's population, but the total number of telephones we own is less than 1% of the total number of telephones in the world! Does my comparison make it more shocking? "
Know that our country's telecommunications industry is backward! But I didn't know it was so backward! Qu Liang was surprised: "The gap is really too big! I think the gap is at least 20 years!"
Qu Liang thinks it will be 30 years behind at most! Say 20 years, just right
Who knew that Wu Zhijun laughed and said: "20 years? That's the starting price! Before the reform and opening up, every 200 people in our country had less than one phone! 75 years behind the United States! Not 20 years!
And our country's switches are particularly backward! Most phones still use the 'cradle'! Long-distance transmission mainly relies on open wire and analog microwave... It is very difficult to make a long-distance call! Don't even think about getting through without an hour or two! Didn't you see the telegraph building where the phone caller had to bring his lunch to line up? "
When Wu Zhijun said this, both Liu Yihua and Qu Liang couldn't help laughing! This kind of smile carries a kind of helplessness and bitterness!
Qu Liang has a deep understanding of long-distance travel! At that time, if Liu Yihua wanted to make a long distance call, he had to tell Qu Liang one night in advance! Qu Liang got up early the next morning and started making calls! One can imagine how difficult it is!
Liu Yihua said with emotion: "Our backwardness is all-round! As far as I know, in 1970, the world's first program-controlled digital switchboard was opened in Paris, France! This marks the advent of a new era of digital communication! Also in 1970, The push-button telephone was used for the first time in Denmark... This telephone uses number buttons instead of the original dialing method..
Look, how far behind is our country? but! it's good now! At least we can solve the communication problem in Laixi County! As for the whole country, I don't think it will be ten or eight years... It will be difficult to popularize telephones! "
This time, Liu Yihua bought a lot of push-button phones! These phones are packed with features! Such as phone number memory function, redial function, monitoring function, 24 kinds of ringtones, etc... But in our country, most of them are dial-up phones! There are very few shaker phones!
Wu Zhijun was surprised and said: "Yihua, I didn't expect you to know so much about the development of the telecommunications industry! However, our country's telecommunications industry has great stamina! Some aspects are already at the advanced level in the world! For example: optical fiber communication! In 1979, our country's first The optical fiber communication system was completed in Beijing! A pair of metal telephone wires can only transmit more than a thousand telephone calls at the same time, but according to theoretical calculations, a pair of optical fibers as thin as spider silk can simultaneously communicate 10 billion telephone calls! Laying 1000 kilometers A coaxial cable needs about 500 tons of copper, and switching to optical fiber communication requires only a few kilograms of quartz. Quartz is contained in sand and stones, and it is almost inexhaustible!"
Liu Yihua said mysteriously: "I know why our country's optical fiber communication is so developed! Because the person who invented the optical fiber cable is the Chinese scientist Gao Kun who is known as the 'Father of Optical Fiber'! Let me tell you a good news. The Hong Kong Island Research Institute of the Hua Group is working! Moreover, due to the abundance of funds... his research and development work has made a breakthrough! Now, Zhenghua Special Economic Zone will set up a company specializing in the production of optical fibers! In this way, our country's communication industry It will definitely develop rapidly! At the same time, we can also make our contribution to the development of the world's telecommunications industry! Of course, we can't contribute in vain! We need money!"
Speaking of Gao Kun, Liu Yihua of later generations admires him very much! Gao Kun is the winner of the Nobel Prize in Physics! Born in Shanghai in 1933, he moved his family to Hong Kong Island in 1948, and then studied for a doctorate at the University of London. In 1966, Gao Kun put forward the bold idea of replacing copper wire with glass! Later, through his unremitting efforts, he finally invented optical fiber! This invention has changed the life of mankind!
Such a powerful person, of course he must try his best to find him! It doesn't matter how much it costs! He can do whatever he wants!
After listening to Liu Yihua's words, Wu Zhijun didn't react for a long time...Suddenly he shouted: "What? Gao Kun came to Zhenghua Group? Zhenghua Special Economic Zone wants to produce optical fibers? This... I'm not dreaming!"
Liu Yihua patted Wu Zhijun vigorously and said: "Director Wu! You are not dreaming! This is all true! Next, we in Laixi County and Zhenghua Special Economic Zone will use our optical fiber to lay a network of sky and earth! Then, our The fiber-optic 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 optical fiber network! If you have the conditions to lay optical fiber, don't waste ordinary cables and telephone lines! It's all copper! Such a waste!
Wu Zhijun excitedly said: "Great! Then we use optical fiber for the main line! That will save a lot of telephone lines! But Yihua, optical fiber is very expensive! In terms of funds..."
Liu Yihua waved his hand and said, "Use optical fiber for the main line? No way!"
Seeing Wu Zhijun smile wryly... Liu Yihua smiled again: "Not only the main line! Branch lines must use optical fiber! And in the Zhenghua Special Economic Zone, fiber-to-the-home must be implemented!
To put it simply, my requirements are:
fttb--fiber-to-the-building (fiber-to-the-building)!
fttc--fiber to the curb (fiber-to-the-curb)!
ftth--fiber-to-the-home (fiber-to-the-home)! "
Liu Yihua's rhetoric... made the first world's most advanced optical fiber communication network system!
Three days later, the commissioning of the digital program-controlled switchboard in the Telecommunications Building of Zhenghua Special Economic Zone was completed!
Liu Yihua dialed a phone number with excitement in the computer room... and said: "Chu Hua, it's me!"
"Ah, Yihua? Where are you...?" A girl asked in surprise!
Liu Yihua smiled and said: "Through time and space... I finally found you!"
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(To be continued. 89 free novels read "").
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