Chapter 105 Awkward Operation Office (3k)

Chief Engineer Chi nodded with an embarrassed look on his face. This was considered as a disgrace to the system. "Yes, there are only 1274 stocks available for use. The 3000 factory that specializes in producing this only produces less than per month. In other words, there is only enough for one unit now."

Gao Zhendong thought about it and comforted them: "It's okay, it's okay, we can adjust the structure temporarily, there will be more than one."

"How many units will that be enough for?"

"Three!"

This news made Director Li and Chief Engineer Chi slightly happy. Although there is not much difference between one machine and three machines, the actual effects are incomparable. At least the training of users will not be so difficult.

Besides, it’s an increase of 200%. Don’t worry about how many units were added. Just tell me whether it is 200%.

The two believed Gao Zhendong's words 100%. He was the designer and the first manufacturer. If he said it was possible, then it must be possible.

"How do we do that? You arrange it."

Gao Zhendong explained to them: "Director Li, Chief Engineer Chi, the situation is like this. In fact, of the more than 6000 triodes required for each computer, about half are used for transistor high-speed storage devices. We can temporarily use the existing magnetic core memory in the institute. When I designed the storage interface, I had already intentionally made it compatible with the interface of the existing magnetic core memory, so it can be used directly by connecting it."

"That's great, will it affect performance?"

Magnetic core memory has long been eliminated. This is a very interesting type of memory. The inventor who made it practical was a Chinese engineer in the United States.

This thing has a very special point that later people could not imagine, that is, unlike many storage devices in the future, its reading is slower than its writing.

The reason is that the reading of magnetic core memory is destructive reading, that is, after the data is read out, the data is destroyed. The problem solved by this Chinese engineer is the problem of immediate write-back after reading.

Therefore, a read of the magnetic core memory requires two actions, "read-write", so the actual reading time takes twice as long as a simple write.

These two are experts, so they asked whether the question would affect the computer performance.

"It won't have much of an impact. The main reason is that the operating frequency of the current transistor computer is not very high, less than 1MHz. If I remember correctly, the read and write speed of the existing magnetic core memory is about 1 microsecond. Converted, the maximum read frequency is about 0.5MHz. Although it's a bit slower, the computer doesn't have to read all the time, so it's still enough."

After listening to Gao Zhendong's explanation, the two finally felt relieved.

In this way, half of the transistors can be saved, and 1 tubes can supply three transistor computers.

Chief Engineer Chi also sighed: "No wonder you asked us to prepare magnetic core memory when you came last week. It turns out you even thought of this situation."

Gao Zhendong was a little dumbfounded. I just wanted to make a magnetic core memory to use as a program memory and save the high-speed transistor memory for random access memory. Mr. Chi, you are really overthinking it.

This reminded Gao Zhendong of the lucky draw yesterday, in which he won an online novel about a man who became a millionaire by relying on "Dihua's imagination". Although it was good to read, it was difficult to read.

Gao Zhendong couldn't explain this matter, so as not to embarrass Mr. Chi, so he had to add: "Compared with transistor memory, the biggest problem of magnetic core memory is that it is slow, large, heavy, and difficult to maintain. However, considering the current conditions and usage environment, performance is not a big problem. In fact, I study transistor memory mainly to solve the problem of miniaturization and prepare for future high-speed computers."

When the two heard this, their eyes lit up: "Ah? Zhendong, you are even doing preliminary research on the next generation?"

This is also the way we often use to upgrade and iterate equipment, "produce one generation, develop one generation, pre-research one generation, and explore one generation", so the two naturally thought in this direction.

Gao Zhendong was overwhelmed by the two's powerful imagination, so he had to bring the topic back: "We'll talk about this later, let's solve the problem at hand first. Using this method, plus the output of Factory 1274, it can be estimated that within a few months we can only get 4 to 6 computers at most. This amount may not be enough."

The three of them thought for a long time, and the two people in the calculation office suddenly realized that it was far away in the sky, but it was right in front of them. Where did this young man get the 6000 tubes? It was his kind father-in-law!

Director Li thought of this and said to Gao Zhendong with a hint of sarcasm: "Zhendong, can your girlfriend's family... Of course, we can't let him spend money this time. The department said that as long as we can find the pipe, we can buy it."

Gao Zhendong slapped his head and thought, yes, where did the Lou family get the triode? Go and ask, maybe we can get it.

Gao Zhendong nodded and said, "Yes, yes, yes, I'll go ask after get off work this afternoon."

After discussing the matter, Gao Zhendong went to the training room and gave lectures to the people in charge of computer manufacturing, and also answered questions for the people in charge of keyboard and display design.

Now the computer-TV display signal converter is already in production. This thing is just a transitional device, and the number of components is small, and it is bulky and black. The Institute of Computing organized a few people to manually draw and etch the circuit board according to the circuit diagram given by Gao Zhendong, and then manually solder it to finish the job.

It is estimated that several dozen can be produced in the next few days, which is enough. Until the official display is produced, this thing will not be produced again. Gao Zhendong planned to give the manufacturing staff four days of training and communication time, which will end after Wednesday. The rest will be communicated and resolved during the production process.

During the break, Chief Engineer Chi came up and asked Gao Zhendong something he had forgotten: "Zhendong, what about the wave soldering you mentioned last time?"

Gao Zhendong then remembered that he had made something up as an excuse to fool people, but people really took a fancy to it.

Gao Zhendong had an expression of sudden enlightenment on his face: "Ah, yes, yes, I'll draw it for you right away."

So Gao Zhendong took a piece of paper and drew out the schematic diagram of the entire wave soldering line, including flux coating, preheating, wave soldering tank, and forced cooler. It was basically a complete wave soldering production line.

Gao Zhendong drew a single-wave soldering process. Double-wave soldering is only used when there are SMT (surface mount) components or the device density is high. At this time, the components are large and the device density is low, so single-wave soldering is more appropriate because it is simple, low-cost and less difficult.

Although there is no physical design, this line is proven to be mature and usable.

A considerable part of them require automatic control, such as air cooling time, flux coating control, etc., which can be solved by timers and various switches, especially for systems like this that do not require high control accuracy.

The rest, such as preheating temperature, tin bath temperature, etc., can be solved with thermocouples. Although it is not as good as the infrared temperature control in the future, it can be used.

Gao Zhendong even selected the type of pump and wave-making structure.

Chief Engineer Chi was also knowledgeable about the business. After taking a look and having Gao Zhendong explain more, he understood a lot of things. He felt that he had a good chance of succeeding and was very happy. He took the drawings and ran away, intending to find a sister company to get this thing done.

Gao Zhendong suddenly remembered something and asked Chief Engineer Chi to wait for a moment: "Chief Engineer Chi, um, you have all printed out the materials for the transistor computer, but where is my original version?"

Chief Engineer Chi had a feeling of "Oh no, he remembered it." "Zhendong, although it has been copied, this is already an important historical document. Would you consider letting us collect it? Hehe."

Gao Zhendong was stunned: "Ah? Mr. Chi, it shouldn't be this serious, right?"

Chief Engineer Chi's face straightened: "As for, as for, Zhendong, we promise to preserve it carefully so that future generations can see every bit of effort you have put into the computer industry."

After saying that, he looked at Gao Zhendong with expectant eyes.

Gao Zhendong thought that since the first domestically produced transistor computer had been given to him, it would be better to keep the supporting information here, which would be more meaningful. So he simply agreed. Anyway, he still had an original version provided by the system.

Decades later, the first domestically produced vacuum tube computer and the first domestically produced transistor computer, including their design data, were carefully stored in the entrance hall of the Institute of Computing Technology, so that people entering and leaving the Institute of Computing Technology could see at a glance these two pioneers that created the first domestically produced computers.

Interestingly, on the nameplate, the designer of the tube computer was filled in with "such and such unit, such and such unit, such and such unit". On the transistor computer, there were only three simple words: Gao Zhendong.
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After get off work, Gao Zhendong rode his bike to Lou Xiaoe's home.

When Lou's mother saw Gao Zhendong coming, she was so happy that she couldn't stop smiling: "Zhendong, you are here. Why don't you come to see us more often, kid?"

Gao Zhendong apologized sheepishly: "Aunt, I'm really sorry. I've been busy with work recently. I'll come to see you more often later."

Lou's mother was not angry. Gao Zhendong had earned a lot of face for her. In the old circle, when it came to the issue of son-in-law, she could basically get away with it. No other old sister was better than him.

With a smile on her face, Lou's mother asked someone to prepare dinner while calling Lou Xiao'e.

Lou's father also came down. While responding to Lou's mother's enthusiasm, Gao Zhendong gestured to Lou's father to go to the study.

Father Lou understood, called Gao Zhendong up, and walked towards the study.

Upon seeing this, Lou's mother knew that the two had something to discuss, so she went straight to arrange the meals, leaving Lou Xiao'e, who came downstairs excitedly, empty-handed.

After they closed the door, Father Lou asked first, "Zhendong, is there something important?"

He knew Gao Zhendong was coming, and if it wasn't for something important, he wouldn't have asked him here.

Gao Zhendong smiled and said, "Uncle, I have something to ask you to see if you can help me find a channel."

(End of this chapter)