Chapter 6 Supplementary Knowledge

  Ten minutes later, the exhausted Feng Xiaotian suddenly jumped up from his chair. Because he used too much force, his head even hit the beam of the house. Although it hurt a lot, Feng Xiaotian didn't mind at all, because he had already found the answer to the problem - the signal receiver was out of power!

  This is a very simple question, but at the same time it's also an easy-to-ignore problem. This signal receiver was disassembled from a radio, when using the radio, batteries are needed to provide power for normal operation. Now installing it on a computer, naturally also requires providing energy for it to work.

  Feng Xiaotian burst out laughing twice, then took the batteries out of the radio and connected them to the signal receiver with two copper wires. After doing all this, he eagerly looked at the computer monitor. This time, there was finally some movement on the computer monitor, but after taking a look, Feng Xiaotian was stunned - why were garbled codes appearing?

  Yes, on the computer screen was a jumbled stream of characters, with many disorderly characters filling the screen, then alternating line by line. Feng Xiaotian looked at it dizzily, and after being stunned for a moment, he moved the mouse to operate, but the jumbled stream did not disappear due to his operation, they still occupied the entire screen.

  "This... why is this?"

  Feng Xiang Tian was confused again, and this situation at least indicates that the signal receiver has received wireless information, but what is displayed on the computer screen is a garbled stream. How to explain this?

  Feng Xiaotian started thinking, and this time he didn't have to work hard to find the reason. The reason was actually very simple: the electromagnetic waves received by the signal receiver were radio frequencies, not computer wireless network frequencies. To solve this problem, one would need to know what frequency band the computer's wireless network used. Feng Xiaotian didn't understand this, so for now he could only give up.

  *sigh*...

  Feng Xiao Tian let out a long sigh, he was just relying on his enthusiasm to start modifying the action, originally thinking that things would be resolved quickly, but in fact it wasn't that simple. The computer is just a machine, any link that goes wrong can cause undesirable consequences. These garbled codes appearing on the computer screen are actually digital signals used by radios. Currently, it's unlikely to convert them into text because they are audio signals and don't belong to the text system.

  Feng Xiang Tian was a bit downhearted, but he soon let it go. The problem arose because he didn't have the relevant knowledge reserve. It seems that in the future, he needs to strengthen his knowledge in this area.

  Feng Xiaotian thought of this and turned his gaze to the books piled in the corner of the wall, which covered many aspects, including one about wireless radio signals. This book was specifically brought by Feng Xiaotian from Old Li for repairing radios, so he only flipped through the content related to radio signals, as for the rest, he didn't pay much attention.

  Feng Xiao Tian shut down the computer, got up and found this book from the pile of books, lay on the bed to study it carefully. Under the dim light, his expression looked very focused. The room fell into extreme silence, only occasionally hearing the sound of turning pages.

  At 4 am the next morning, Feng Xiaotian got up. He didn't sleep all night, but it didn't affect his mental state. At this moment, Feng Xiaotian looked very happy. Through last night's all-night study, he already had a relatively intuitive understanding of wireless knowledge. Wireless signals are indeed a very magical thing, and different frequencies will produce completely different results.

  Feng Xiao Tian got out of bed and washed up simply, then took his snake skin bag and went out the door. As usual, he started bustling about for a living again.

  It's winter break now, so he has plenty of time. Feng Xiaotian has made up his mind to take this opportunity to thoroughly understand the mysterious thing called computer. As for artificial intelligence, it's still not reliable at present. You can't expect a child who just learned to walk to go to outer space, right?

  At 6:30 in the morning, Feng Xiaotian arrived at Lao Li's gate with a big bag of recyclables. As usual, Lao Li was squatting in the corner brushing his teeth. It seemed like they had an unspoken agreement that every day at this time, Feng Xiaotian would arrive on time at Lao Li's house and Lao Li would be squatting in the corner brushing his teeth. This was a tacit understanding between a trash collector and a waste collector, which was quite amazing to say the least.

  Feng Xiao Tian pushed open the courtyard door and walked in, smiling as usual: "Uncle Li, you're up really early today."

  Old Li rinsed his mouth, stood up and smiled: "You're early, Little Tian. Wait a minute, I'll wash my face and come out."

  After more than ten minutes, the two men settled the bill. Feng Xiaotian's income for today was 1 yuan and 75 cents, which was quite good. Old Li handed the money to Feng Xiaotian, who took it but didn't leave. Instead, he cast his gaze towards the pile of old books in the corner. Seeing this, Old Li chuckled and said: "What? You want to dig through books again? If you want something, find it yourself, just don't mess things up."

  "Feng Xiao Tian heard this and smiled, saying: 'You can rest assured, I will be careful.'"

  Both of them were familiar with this, Old Li nodded and went into the house to cook, while Feng Xiao Tian came to the pile of books, carefully searching for his target, which was only one thing - finding books about computers.

  Because computers are not yet widespread and are still a novelty, there aren't many books on this topic domestically. As a result, Feng Xiaotian was only able to find a few related old books after searching for over 20 minutes, and he only managed to collect two books.

  Feng Xiaotian tidied up the pile of books, took two books and walked into the house. Old Li was cooking and saw Feng Xiaotian come in, he took out the tobacco pouch from his mouth and tapped it on the stove, then smiled and said: "You've picked these two books today?"

  Feng Xiao Tian nodded and smiled: "Yes, you can call me that."

  The two books weighed less than three catties, and at the price of waste paper, they should have cost less than 20 cents. But this way, Old Li would be working for nothing. According to their agreement, Feng Xiaotian bought the books at a price of eight cents per catty. In the end, Feng Xiaotian paid 25 cents and took the books away.

  In the following days, Feng Xiang Tian still got up early every day to pick up waste and sell it for money. After returning home, he studied computer knowledge on one side and practiced various things on the computer on the other side. Time flew by quickly, and before he knew it, the Lunar New Year had arrived.

  For Feng Xiaotian, the Spring Festival is dispensable because he is now the only one left in his family and there is no festive atmosphere at all, so Feng Xiaotian doesn't care about it - or it can be said that he deliberately avoids it.