Chapter 224 The Youth of Computers
Unlike the people in the Communications Academy, the leaders of the 12th Ministry of Machine Building felt as happy as drinking iced Coca-Cola in the dog days of summer when they received this news.

Resisting the urge to go to the 17th Ministry of Machinery to snatch people, he said to himself: "Message transmission, file transmission, the things that a telephone network can do are more than just making phone calls, haha."

Looking at the last few lines of the report from the computing center - "This is a serious matter. How to use it? I hope the ministry and related units will quickly review and decide, so that its benefits can be realized as soon as possible."

"This thing is indeed a bit too convenient. It's good, but it's also true that they can't make a final conclusion. I'm afraid the Defense Work Committee, the Postal and Communications Committee, the Education Department, and the Propaganda Department all need to sit down and discuss this matter. Oh, and there's also the blacksmith from the 17th Ministry of Machine Building. He's their man, and they can't ignore him."

The leader was talking to himself while calculating.

So Gao Zhendong, who had returned to the Third Rolling Mill from the Operation Office, received a notice to attend a meeting at the 12th Ministry of Machine Building on Saturday afternoon when it was almost time to get off work.

Today is Thursday. The reason I didn't go the next day is mainly because it is really difficult to get the participants to gather time. They are all busy people with a lot of things to do. It would be a special case if we can get them all together in a day and a half. Why would you need a bicycle?

But you know what, there are quite a few exceptions with Gao Zhendong. Every move he makes can alarm the leaders of the 17th Ministry of Machine Building, the Defense Work Committee, and the 12th Ministry of Machine Building. He is quite an anomaly.

After receiving the call, Gao Zhendong wrote the meeting arrangement in his work diary and put the matter aside. He turned back and started working on another circuit board that the computing institute had made for him.

Yes, it was the electronic device that did subtraction that Gao Zhendong was inspired to think of when Su Weihua was trying to solve the problem of anti-ship missiles losing altitude last time.

The circuit board operation center had been completed. The electronic components were obtained by Lou Shouxing from Western countries through Hong Kong channels and had been delivered to him a long time ago.

This thing is actually quite simple to explain. He wanted to make some simplifications based on the DJS-59 and use the newly emerged integrated logic gate circuits to make a smaller, more streamlined version of the DJS-59.

In Gao Zhendong's design, this thing is different from the DJS-59 which is composed of many 50*50cm circuit boards. This thing is composed of only circuit boards with a total area of ​​50*50cm.

This 50*50 total area integrates a streamlined version of the DJS-59 all-transistor computer and necessary input and output interfaces, as well as 96 bytes of transistor memory as running RAM, while more RAM and program storage ROM are stored externally.

This is Gao Zhendong’s idea. The integrated circuit technology of microcontrollers is not mature now, so I will do subtraction and add the newly born integrated circuit chip to make a single-board computer, right?

This single-board computer does not need as "powerful" performance as DJS-59, about half of it will do. The more important requirement is that it must be compatible with the architecture of DJS-59 and can use most of the software resources of DJS-59.

This youth version of DJS-59 aims to have a "extremely small" size and consume less power to complete basic computing work, so Gao Zhendong even integrated 96 bytes of RAM into it.

Don't underestimate this thing. With this thing, the application scope of computers can be greatly expanded. That little computing power may seem insignificant in the future, but at this time, it can really do a lot of things.

To give an imminent example, once this thing is completed, Gao Zhendong will equip his home with a set of XS-59 and JP-59, and he will be able to program software at home again. Now the DJS-59 is kept in the factory, which is really inconvenient.

In Gao Zhendong's plan, single-board computers will serve as substitutes for single-chip microcomputers to complete the work of embedded systems and some personal PCs, while DJS-59 and the second-generation computer he designed will be used as medium and large computers.

In order to achieve this goal, we rely on the integrated logic gate circuits that have just appeared.

Although the integrated logic circuits at that time were not as diverse and comprehensive as the later 74/54 series and CD4000 series, the multi-way integrated OR gate, AND gate, and NOT gate chips he had just bought were enough for him to play around with. These three logic gates are the basis of all other logic gates.

An integrated logic circuit usually has four to seven basic logic gate circuits mentioned above, which means that a chip can replace several or even dozens of transistors in the past.

Add to that the area saved by the resistors and capacitors, and the area saved is several times or even more than ten times.

With a little excitement, Gao Zhendong began the debugging of the single-board computer.

Subtraction had been done long ago. Gao Zhendong had already designed the single-board computer circuit using OR gate, AND gate, and NOT gate.

However, the difference from DJS-59 is that DJS-59 was copied, while this time it is a serious design of my own. Although there are a lot of achievements of DJS-59 to learn from, this is still a new set of things.

The integrated circuit is new, the circuit diagram is new, the circuit structure can also be considered new, and compatibility with DJS-59 must also be considered. It is not an easy job to complete the debugging.

Thinking of this, Gao Zhendong sorted out the things he had not completed or was about to do.

Material line: single crystal furnace, tungsten copper material, tungsten molybdenum alloy, and three types of firearms steels promised to Beijing University of Technology. The progress of the first three is OK, especially the single crystal furnace. Judging from the report Gao Zhendong received, it is nearing completion. The last three have not started yet, but that stuff is very easy for Gao Zhendong. Who can't copy the answers?

Information technology line: "Principles of Automatic Control", single-board computers, second-generation computers, operating systems, network technology, and C language.

"Principles of Automatic Control" is a long-term project and cannot be rushed. The single-board computer is being developed, and the second-generation computer has not yet started. Now its preparatory work is being carried out, such as the single crystal furnace. The operating system is being improved step by step and has been completed about halfway.

In terms of network technology, what we have now is sufficient for the time being, and more will have to be put on hold. Within one to two years, the environmental conditions for the application of new technologies will not appear, so we can prepare slowly.

I will get training on C language after I get married, and there is nothing else to do.

Management line: Nothing much for now, Gao Zhendong is not planning to put more effort in this area for now. Regarding the "Safety Management System" training, the 17th Machinery Department and the factory are arranging it. It's just after the Chinese New Year, so it hasn't started yet. I'll just go and join in when it starts.

As for other things, even such an important matter as the ruby ​​laser, Gao Zhendong thinks they are just a supporting role, not his real job. He can just participate when appropriate.

If you calculate it this way, the work is not much and the time is still plenty. It scared me to death, I thought I didn’t have time to get married.

He patted his chest and continued to work.
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At the same time, Mr. Cramer, deputy editor-in-chief of AIEE journal, received a thick letter from an old friend.

The letter must have been opened, but Kramer didn't care. It would be strange if it hadn't been opened and checked. Kramer was the first one to not believe that the letter from that country in the East had not traveled to the Lanly Center first.

After all, they were beaten up by someone on the other side of the earth a few years ago. A dozen or twenty people beat two and a half of them. Sitting down for negotiation meant losing. What's more, since the fall of that country in the East, they have been pushed all the way back from the river.

He couldn't wait to open the letter, which was written in the familiar handwriting of his old friend.

". The researchers of C language have improved its standard and supplemented the missing parts in the original haste. They are in the attachment of the letter. I hope it can be helpful to you. I also hope you will stop complaining about its difficulty every day. This is a beautiful computer language. My friend, it does not deserve this kind of treatment."

Well, if there really is standard supplemental content in the letter, I promise to reduce my complaints by half, oh no, one third, no more!

Kramer thought to himself as he looked at the letter.

However, the rest of the content in the letter made him sit up straight and perk up instantly. No wonder Lanli's people did not stop the letter. After all, they were reluctant to give up such an opportunity to gain an advantage.

"If necessary, we can provide the compiler source code and instructions for this language. Of course, you need to solve two problems. The first is how to port it to your machine. Your machine is different from ours."

"Second, you have to find a way to deal with those curious people at the Lanley Center. You know, they may not be so friendly to everything coming from us."

Kramer couldn't help but cheer. Source code? That's great. The missing standards and obscure content made the implementation of the C language compiler seem difficult. With the source code from its creator, all of this would be solved.

As for the people at the Lanley Center? There is no need to deal with them. This gift from God is what they crave every day.

This should also be the biggest reason why this letter came into my hands, because like the previous letter, it has benefits.

However, the next paragraph of the letter made Kramer jump up from his chair. Oh my God, what did I see? Are you finally looking down on your poor believer and want to save me?

"Mr. ZhenDong Gao, the creator of C language, felt that the C language standard was too unfriendly to beginners, so he wrote a book about C language and provided some concise but effective exercises, aiming to let everyone appreciate the 'elegance' of C language. If you need, I can try my best to facilitate the publication of this book in your place. Of course, this requires your cooperation. I think you are happy to serve Mr. Gao, aren't you?"

I do, of course I do, Cramer danced.

I swear on my salary, Lanli and his gang would definitely be willing to do so!!
Kram could not wait to take out paper and pen and start writing back to his friend in the East.

"My dear friend."

(End of this chapter)