Chapter 105 The Embarrassing Computing Office (3k)
Chief Engineer Chi nodded with an embarrassed look. This was considered a shame and was thrown out of the system: "Yes, the inventory that can be called is only 10,000, specialized in production The monthly output of the 1274 factory is less than 3,000. In other words, it is only enough for one unit."
Gao Zhendong thought for a while and comforted them: "It's okay, let's adjust the structure temporarily. More than one."
"How many are there?"
"Three!"
This news made Director Li and Chief Engineer Chi slightly happy. Although one unit and three units were about the same, the actual effects were quite different. At least the user training would not be so stretched.
Besides, it’s an increase of 200%. Don’t worry about how many units have been added, just say it’s 200%.
As for Gao Zhendong’s words, the two of them believed 100% that this was the designer and the first manufacturer. If he said it was possible, then it must be possible.
"How to do it? You make the arrangements."
Gao Zhendong explained to them: "Director Li and Chief Engineer Chi, the situation is like this. In fact, each set of computers requires more than 6,000 About half of the transistors 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 intentionally made it compatible with the existing magnetic core memory interface. Just plug it in and use it.”
"That's great, will it have any impact on performance?"
Magnetic core memory has long been eliminated in the future. This is a very interesting memory. The inventor who made this thing practical is a A Chinese engineer invented it in Citi.
This thing has a very special point that people later cannot imagine, that is, unlike many storage devices in the future, its reading is slower than writing.
The reason is that the reading of magnetic core memory is destructive reading, that is to say, after the data is read, the data is destroyed. The problem this Chinese engineer solved was the immediate write-back problem after reading.
So a read of magnetic core memory requires two actions of "reading and writing", so the actual reading time is twice as long as that of simple writing.
These two are also experts, so they would ask questions about whether it will affect the performance of the computer.
“It won’t have much impact. The main reason is that the working frequency of the current transistor computer is not high, less than 1MHz. If I remember correctly, the read and write speed of the existing magnetic core memory is 1 micron. About seconds, converted, the maximum reading frequency is about 0.5MHz, although it is slower, but the computer is not reading at all times, which is still enough."
After hearing Gao Zhendong's explanation, the two of them said this. Then I felt relieved.
In this way, half of the transistors can be saved, and 10,000 transistors 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 that you even thought of this situation."
Gao Zhendong was a little dumbfounded. I just wanted to use a magnetic core memory as a program memory and save the high-speed transistor memory exclusively for random storage. Mr. Chi, you are really thinking too much.
This reminded Gao Zhendong of yesterday’s lottery. The book he won was about becoming a millionaire through “dihua brain supplements”. Although it was good-looking, 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 problems of magnetic core memory are slow speed, large size, heavy weight, and maintenance. It’s difficult, but considering the existing conditions and usage environment, performance is really not a big problem. In fact, I study transistor memory mainly to solve the problem of miniaturization and prepare for future high-speed computers.”
< br>When the two of them heard this, their eyes lit up: "Huh? Zhendong, are you even pre-researching the next generation?"
This is also our commonly used iterative approach to equipment upgrading, "produce one generation, develop one generation, and prepare one generation." "The research generation, the exploration generation", so the two of them naturally thought about this aspect.
Gao Zhendong was overwhelmed by these two powerful brainstorming abilities, so he had to bring the topic back: "We will talk about this later, let's solve the immediate problem first. With this method, plus the output of the 1274 factory, we can It is estimated that we will only be able to get 4 to 6 computers at most within a few months. This amount may not be enough.” It's on the horizon, right in front of you. Where did this guy get his 6,000 tubes? That is his father-in-law, a great virtuous man!
Director Li thought of this and said to Gao Zhendong with a bit of ridicule: "Zhendong, can you go to your partner's house? Of course, we can't let him spend any more money this time. The ministry has said, If you can find a tube, just buy it.”
Gao Zhendong slapped his head, yes, ask where the Lou family got the triode, maybe you can still get it.
Gao Zhendong nodded and responded: "Well, yes, yes, I will ask after get off work in the afternoon."
After discussing the matter, Gao Zhendong went to the training room to give lectures to the people responsible for computer manufacturing, and also answered questions for the people responsible for keyboard design and monitor design.
Computer-TV display signal converters are now in production. This thing is a transitional device, and there are not many components. The circuit diagram provided by Zhendong, the etched circuit board was drawn and etched by hand, and it was done by hand welding.
It is estimated that dozens of them will be produced in the next few days, which is completely sufficient. This thing will not be produced again until the official display is produced. In Gao Zhendong's plan, the training and communication time for manufacturing personnel is only four days, which will end on Wednesday. The rest will be communicated and resolved during the production process.
During the break, Chief Engineer Chi came up and asked something that even Gao Zhendong had forgotten: "Zhendong, the wave soldering that you talked about last time"
Only then did Gao Zhendong remember that he had created something as an excuse to deceive people, but they really took a fancy to it.
Gao Zhendong had a look of realization on his face: "Ah, yes, yes, I will draw it for you right now."
So Gao Zhendong took a piece of paper and soldered the whole strip The schematic diagram of the line is drawn, including flux coating, preheating, wave soldering tank, and forced cooler. It is basically a complete wave soldering production line.
What Gao Zhendong drew is single-wave wave soldering. Double-wave wave soldering is only used when there are SMT (SMD) components or the component density is high. The components at this time are all big. The device density is low, and single wave is more suitable, which is simple, low cost and less difficult.
Although there is no physical design, this line is proven and mature.
A considerable part of them require automatic control, such as air cooling time, flux coating control, etc. The problem can be solved through 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 infrared temperature control in the future, it can still be used.
Gao Zhendong even chose the type of pump and wave-making structure.
Chief Engineer Chi is also knowledgeable. After taking a look and Gao Zhendong explaining it, he understood a lot of things. He felt that he was very sure of the result. He was very happy. He took the picture and ran away. He wanted to find it. Let’s work together as a brother unit to get this thing started.
Gao Zhendong suddenly remembered something and asked Mr. Chi to wait a moment: "Mr. Chi, what about that? You have printed the materials for the transistor computer. Where is my original version?"
Chief Engineer Chi had a thought of "Ah, no, he reminded me of it": "Zhendong, although they have been copied, this is already an important historical material. Do you want to consider letting us collect it? Hehe."
Gao Zhendong was startled: "Ah? Mr. Chi, it's not that high, right?"
Mr. Chi's face straightened: "As for, as for, Zhendong, we promise to collect it carefully so that it can be collected later. People like you can see every effort you put into the computer industry."
After saying that, he looked at Gao Zhendong with expectant eyes.
Gao Zhendong thought that the first domestically produced transistor computer was given to him, and it was indeed better and more meaningful to leave the supporting information here, so he simply agreed. Anyway, he still had a system to provide it. Original version.
Decades later, the first domestically produced electron tube computer and the first domestically produced transistor computer, including their design data, were carefully stored in the entrance hall of the computing institute so that people entering and leaving the computing institute could see them at a glance. Two pioneers that pioneered domestic computers.
What’s interesting is that on the nameplate, the designer of the tube computer is written as a certain unit, a certain unit, a certain unit. As for transistor computers, there are only three words: Gao Zhendong.
——
After get off work, Gao Zhendong rode his bicycle to Lou Xiaoe’s house.
Mother Lou was so happy when she saw Gao Zhendong coming: "Zhendong, you're here, you kid, you never come to see us often."
Gao Zhendong apologized sheepishly: "Auntie, I'm really sorry. I've been busy with work recently. I'll come and see you more later."
Mother Lou was not angry at all. Gao Zhendong earned her a lot of face. It's too big. In the old circle, when it comes to her son-in-law, she can basically go through it. No old sister is as good as him.
With a smile on her face, Lou’s mother asked people to prepare dinner and called Lou Xiao’e.
Father Lou also came down. While responding to Lou's mother's enthusiasm, Gao Zhendong motioned to Lou's father to go to the study.
Father Lou understood, greeted Gao Zhendong, and walked to the study.
Seeing this, Lou's mother knew that the two of them had something to discuss, so she went straight to arrange the meals, but Lou Xiao'e, who rushed downstairs excitedly, missed the arrangements.
The two closed the door, and Lou's father asked first: "Zhendong, is there something important?"
He knew that Gao Zhendong was coming, so if it wasn't something important, he wouldn't have asked him to come here. of.
Gao Zhendong smiled and said: "Uncle, there is something I have to ask you to see if you can take action again and find a channel."
(End of Chapter)