Chapter 77 Binary Strike Mandible
That afternoon, the girl was still tinkering with the motherboard. The motherboard that had been placed in a humid climate for twenty years was simply a mold culture dish, with brightly colored hairs. At first glance, it looked like a paint palette. Banxia cleaned them up and put them outside in the sun. Wang Ning said that it would be best to find an unopened and unused motherboard. Industrial control or military motherboards are best because they use tantalum capacitors, which are not easy to break.
"3150 industrial control motherboard, find a Celeron 3150 fanless industrial control motherboard, I think it should work." Wang Ning said, "This thing is easy to find on Zhujiang Road."
"Have you used that thing before?" Bai Zhen asked, "What system is it?"
"XP, or Win7." Wang Ning replied.
"Very good." Bai Zhen nodded, "Then we can play Red Alert."
Banxia turned over the square motherboard in her hand and blew on it. This was probably the most sophisticated man-made object the girl had ever seen, with a green substrate, silver circuits, densely packed resistors and capacitors, and interfaces of all sizes. The structure was so complex that it was dizzying. Banxia brushed off the dust very carefully. This motherboard had no fan, and there was a large black heat sink in the center of the board.
It will be the core of the image transmission link.
It is responsible for converting the image data collected by the camera into audio signals that can be transmitted by amateur radio stations.
"Wait, wait, what did you say?" Bai Yang asked, "Audio signal? Sound?"
"That's right, Xiao Yang, do you have any questions?" Wang Ning put the motherboard on the coffee table and looked up.
"Convert...convert images into sounds?" Bai Yang couldn't believe it.
"Yes, you heard it right. It is to convert the image data into audio signals, transcoding the photos that your eyes can see into the 'sizzling' sound that your ears can hear." Bai Zhen nodded.
"Any data can be converted into sound signals," said Wang Ning. "This is the simplest way of transmission. Like electromagnetic waves, sound waves are also waves. As long as they are waves, they can be modulated. Don't you rely on the microphone and amplifier of the radio station when you use voice to communicate? If your voice is modulated, it can also carry image information."
"This... transmitting the picture through oral broadcast?" Bai Yang was stunned.
"It can be said that if your tongue and vocal cords are strong enough, you can use your mouth to send out accurate modulated sound waves to the radio station - it will sound a bit like the Parseltongue in Harry Potter, and the people at the radio station have a tape recorder, they can record the sound, input it into the computer for transcoding, and then restore it to a picture." Wang Ning nodded, "This is why we need to use the motherboard, because the motherboard usually has a built-in sound card."
"What is information? Information is essentially orderly and regular. Anything can carry information as long as you can change its regularity." Wang Ning continued, "For example, I beat up your dad."
"Get lost." said Lao Bai.
"I hit your father's jaw with my fist regularly and rapidly, using binary," Wang Ning said. "I can even type out an XP system."
"Then my dad's mandible needs to be replaced with titanium alloy." Bai Yang said.
"It's the same with sound. Sound waves can be modulated, and they can carry any information." Wang Ning said, "This is also the simplest and most suitable transmission method at present."
"This is the so-called AFSK," said Bai Zhen.
The two old men got a lot of motherboards and cameras and piled them in the living room. There were so many that my mother was annoyed. She said that when she opened the door, it was like entering a second-hand electronics market.
Under the guidance of Wang Ning and Bai Zhen, Banxia can make anything from the electronic waste on Zhujiang Road.
She sat cross-legged on the floor of the living room, her back against the sofa, and said casually, "Mom and Dad, how did you make this thing? It's incredible."
In Banxia's imagination, this thing was soldered on one by one by a person using tweezers, clamping small parts. However, some components on the motherboard were so small that she couldn't even see them clearly. How should they be soldered?
She suddenly picked up the slippers.
Hold your breath, be silent for a moment, then strike as fast as the wind and lightning!
The slippers flew out and hit the cabinet with a "bang". Over the years, Banxia had already developed the ability to identify the location by sound. She kept her eyes and ears open in all directions and was more sensitive to the sound of mice than a cat. As long as there was the movement of a mouse in the room, she would throw a slipper at it with lightning speed.
However, this time there was no "squeak" sound of a mouse fleeing, but instead the sundries piled on the cabinet fell down with a "crash".
Banxia had no choice but to get up and clean up.
These were the miscellaneous items she had moved out when she was looking for an English-Chinese dictionary some time ago. She hadn't had time to clean them up at the time, so she just piled them on the TV cabinet. They all collapsed when they were hit by a slipper just now.
There were papers, pens, coins, empty boxes, pills of unknown use, and the bulky "Journey to the West". Banxia stuffed them all back into the drawer. She was actually a person with a messy life. When she lived alone, she would take things and put them anywhere.
The girl picked up "Journey to the West" from the ground. It was a thick book, and she hardly flipped through it because she couldn't understand it.
The teacher told me that it tells the story of a bald man and three monsters who went to the West to obtain Buddhist scriptures.
Banxia flipped through it casually, glanced at the page number and looked at the header.
"Sanzang never forgets his origins... The four saints test his Zen mind..."
Banxia recited it.
"The three women went behind the screen and left behind a pair of gauze lanterns. The woman said, 'Four elders, are you willing to pay attention and see which one is a good match for my daughter?' Wujing said, 'We have already discussed it and we want the one surnamed Zhu to be our son-in-law.'"
He turned two more pages and read it aloud.
"The woman lifted the veil and said to him: Son-in-law, it's not that my daughter is naughty, they are all polite and don't want to marry you. Bajie said: Mother, since they don't want to marry me, why don't you marry me! The woman said: What a good son-in-law! This man has no respect for his parents and even wants his mother-in-law!"
can't read.
I totally don't understand.
Can pigs have mothers-in-law?
In this era, books have lost their meaning of existence. The teacher once had many books, but they were all burned in the end, along with her materials and notes. Banxia still remembers that the teacher threw them into the brazier and burned them with a wooden expression, and sat there without moving for the whole afternoon. There may not be many books left in Nanjing. Such a large library as Nanjing Library has been emptied. People emptied the library of course not for reading, but for heating. Banxia remembers that one winter was very cold, and the teacher chopped up the wooden furniture into firewood for heating.
That was the last time it snowed in Nanjing.
"That night, when all the ministers left the court, the demon entered the Yin'an Palace. Eighteen palace maids were selected to play music, sing and dance, and persuade the demon to drink and have fun. The monster sat alone at the top seat, with beautiful and charming women lined up on both sides. You can see how happy he was. He drank until the second watch, and when he was about to get drunk, he couldn't help but do whatever he wanted." Banxia recited loudly while pacing around in the living room. "He jumped up, laughed loudly, and revealed his true form. He suddenly became vicious, stretched out his big hands, grabbed a woman playing the pipa, and bit her head. The seventeen palace maids were so scared that they fucked..."
She was stunned.
She suddenly realized that she had read it wrong.
"Fuck you" is not the original text of "Journey to the West", but words written on paper by someone, written in black gel pen, messy and sloppy, inserted diagonally between the lines of the neatly printed original Song typeface text.
"Oh my god."
Banxia said softly.
This is the teacher's handwriting.
She was stunned for a while, then she reacted and frantically turned the pages. In a brief glance, she saw a mess of doodles, formulas, numbers, English and Chinese characters.
1200 km.
Big eyes.
25473000.
Observation.
Entropy.
Galaxy.
"Oh My God."
Banxia murmured.
This is not "Journey to the West", but the teacher's draft.
(End of this chapter)
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