More than half a month has passed unconsciously, and the writing of CAD software has been stumbling. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Yang Weining writes software in the computer center during the day, and writes C language teaching handouts when he goes back at night.

But with the gradual formation of CAD software, Yang Weining soon discovered a problem.

Even for the 611 DJS260 mainframe, it was very difficult to run the CAD software smoothly, and the 1975 DJS-130 minicomputer he used to program was not even able to run.

But the key is that this CAD software has been streamlined to the extreme, unless he doesn't want to create a surface modeling system, and only makes a software like Dassault CATIA that only has simple surface modeling functions, otherwise some algorithms can't be bypassed at all.

This made Yang Weining scratch his head, he didn't expect that the hardware level of this era would be so bad.

"If you really can't do it, you can only find Lu Wenjun to think of a way. ”

Yang Weining frowned and rubbed his temples, the computers used by 611 are biased towards scientific calculations, and they have natural defects in graphic display, so they naturally can't bring CAD design software.

Fortunately, he has been mentally prepared for this situation, and the solution is very simple, that is, to develop a special graphics processor.

If you have a dedicated graphics card, the DJS-130 can bring this software to life.

However, this problem is not something that Yang Weining can solve alone.

After thinking about it, Yang Weining put down the work at hand, walked out of the DJS130 computer room, and went straight to Gu Pei's office.

As soon as he arrived at the door of Gu Pei's office, Yang Weining heard a burst of reprimand.

"Look at you, you can even get the decimal place wrong, if this plane goes to the sky, will you guarantee the safety of the pilot? Is this a responsible attitude towards the pilot's life?"

Immediately afterwards, it was Chen Cheng's voice: "Teacher Gu, this time I was wrong, I was too careless, I promise that there will be no next time!"

"I want to have a next time! There will be a next time, and you can take off the title of deputy director directly. I'll write a review this time and I'll do a self-review at the weekly meeting tomorrow!"

"Okay, Mr. Gu, it's my mistake, you dissipate your anger, dissipate your anger. ”

Soon, Yang Weining saw Chen Cheng walking out of Gu Pei's office with a disgraced face, and when he saw Yang Weining, Chen Cheng showed a wry smile on his face: "Xiao Yang, let you see it." ”

Yang Weining nodded with a smile and said, "Director Gu is okay, right?"

Chen Cheng smiled bitterly: "I was angry with him just now, you hurry up and go in, when I see you, he should be in a much better mood, I'll go first." ”

With that, Chen Cheng left in a hurry.

Looking at Chen Cheng's back, Yang Weining secretly said in his heart, it seems that as rumored, the relationship between Chen Cheng and Gu Pei is not simple.

It is said that Gu Pei suffered a lot during the turmoil because of his outspokenness, and he relied on Chen Cheng's help to barely survive, and later he accepted Chen Cheng as a student and taught him personally, although the two were teachers and students, they were like father and son.

It is precisely because of this that Chen Cheng, who was born as a college student of workers, peasants and soldiers, was able to gain a foothold in the 611 Institute with technology even after the reform and opening up.

Yang Weining shook his head, removed the distractions in his mind, and knocked on the door.

"Please come in!"

Gu Pei's voice soon came from inside.

Yang Weining pushed the door in, and when he saw that the person who came in was Yang Weining, Gu Pei said with a smile on his face: "Xiao Yang, why are you free to come over today?

Since seeing Yang Weining's programming technology, Gu Pei's attitude towards Yang Weining can be described as a 180-degree turn.

In the past half a month, as long as he is free, he will go to Yang Weining's computer room to observe Yang Weining writing programs, and talk about each other's views on the computer industry.

As a result, this conversation couldn't be stopped, Yang Weining came from later generations, and he was clear about the future development of the computer industry, and occasionally showed a sentence or two, which was enough to make Gu Pei feel from a high position and benefited a lot.

Therefore, for this unfathomable young man, Gu Pei has more and more respect.

This also brought Yang Weining's status in the computer center to rise, and many computer engineers with little qualifications had to call Yang Gong when they saw Yang Weining.

Yang Weining smiled: "Director Gu, there is something I want to ask you for a favor!"

"What's the matter, you say. ”

Yang Weining said: "The CAD software I have at hand is almost half written, but I just found a problem, according to the size of the software I am writing now, I am afraid that only one of us can barely run a DJS-260." ”

"You mean, you want to use that DJS-260 to run your CAD software?" Gu Pei frowned and thought for a moment, and said, "This...... It's not okay to give the DJS-260 to you, but I can call the shots and give you half of the DJS-260's man-hours. ”

Yang Weining shook his head and smiled: "Director Gu, you misunderstood, I didn't want to borrow the DJS-260, I mean, since the hardware cost of this software is so high, why don't we jointly build a dedicated graphics computer with Jiangnan Computer Institute?"

Gu Pei thought for a while and said, "Yes, yes, but in this way, when the special graphics computer is successfully developed, I'm afraid it will be a year or two later, have they waited so long?"

Yang Weining said with a smile: "It won't take that long, we just need to ask the Jiangnan Computer Research Institute to make a special graphics processor, and then integrate this processor into the DJS-130 small computer." ”

"GPU? What is this thing?"

Gu Pei frowned, it was the first time he had heard this concept.

Yang Weining smiled: "It's actually a graphics card, but I prefer to call it a graphics card." ”

In 1982, when it was still in the DOS era of "white on black", computers had very low requirements for display, and there was no concept of graphics card at all.

The earliest graphics adapter was the EGA, also known as the Enhanced Graphics Adapter, a technology introduced by IBM in 1984 for its new PC-AT computer.

EGA can only recognize black and white, the early use of 8080, 8088 until 80286 is the use of this type of graphics card, the function is extremely simple, generally integrated 16K video memory, and no one pays attention.