"Director Lu?" Hearing the knock on the door and the sound of talking, Zhong Xiaomo quickly got up and opened the door, when he saw Lu Jiadong standing at the door facing the wind and snow, Zhong Xiaomo was stunned at first, and then hurriedly welcomed Lu Jiadong into the house:

"Why haven't you rested so late?"

"I can't sleep at night, so I come out for a walk!" As soon as Zhong Xiaomo's words fell, Lu Jiadong responded with a kind smile: "I came here so presumptuously, didn't I bother you?"

"No! no!" Zhong Xiaomo hurriedly waved his hand, and then looked at Lu Jiadong's body was still covered with snowflakes, so he turned his head and ordered Song Xiaoxu, the student next to him:

"Xiao Song, add some more fire to the stove! Pour a glass of the ginger syrup we boiled for Director Lu!"

After speaking, he turned his face to Lu Jiadong's side, and then said with concern: "Director Lu, it's cold outside, hurry up and bake the fire at the stove, warm up!"

The north is different from the south, it needs to be heated in winter, if it is in later generations, the northern cities in winter have been changed to central heating, even if there are conditions in the countryside, boilers are used for heating, but in the early 80s, in typical northern bungalows like the Central Plains Electronic Radar Institute,

In addition to the ondol used at home, the main equipment for office heating is the coal stove with a long and slender chimney of the sea bowl, and the heat provided by such a stove is naturally not comparable with the central heating of later generations, but it is indeed a good warm place for people like Lu Jiadong who have just come in from outside the cold house!

So after listening to Zhong Xiaomo's words, Lu Jiadong nodded, dusted off the snow on his body, and then went to the coal stove in the center of the house, put his hand on it to warm up, and at this time Song Xiaoxu came to Lu Jiadong with a cup of extremely rich ginger syrup, and handed it over with both hands:

"Director Lu, drink some ginger syrup, not only to warm but also to prevent colds!"

Lu Jiadong thanked him politely, then took the ginger syrup and drank it gently. I only felt that a warm current ran through my body, and my whole body instantly warmed up from the inside out, and at this time, Song Xiaoxu, who had already completed the coaling, moved a few chairs. The three of them sat around the warm fire like this, and after Lu Jiadong drank a few sips of ginger syrup, he put the cup down, then looked at Zhong Xiaomo and Song Xiaoxu beside him, and asked with a smile:

"Chief Master Zhong. Were you and Xiao Song discussing computers just now?"

Although Zhong Xiaomo was surprised by Lu Jiadong's sudden visit, he was not surprised, after all, the two had established a good relationship during the negotiations in Beijing, not only that, but before and after the establishment of the artillery radar leading group, Lu Jiadong also taught Zhong Xiaomo the relevant knowledge he had about artillery radar, especially the basic calculation and function equation and solution method of multi-point conformity of artillery shells to calculate positioning.

This made Zhong Xiaomo marvel that Lu Jiadong's radar professional technology is so advanced and proficient, and at the same time, he was deeply moved by Lu Jiadong's teaching, Lu Jiadong has such good technology and a broad mind, which makes Zhong Xiaomo admire in his heart. As a result, the two established a strong friendship, and at this time, Song Xiaoxu, who came to Beijing with Zhong Xiaomo, also met the legendary Lu Jiadong, who was about the same age as him!

Because of this, the three of them can be said to be no strangers, so Lu Jiadong can speak straight to the point, and Zhong Xiaomo also answers all questions without concealment:

"At the beginning, we put the multi-point position of the artillery shell created by you into the functional equation of calculating the positioning, and carried out detailed calculations according to the basic situation of our artillery radar.

said. Zhong Xiaomo raised her head and glanced at Song Xiaoxu, who was sitting directly opposite, listening carefully to the speech with a slightly shy smile, although her tone was very stable, she was still outspoken:

"Director Lu, you don't know. I, a student, always thought that I could build a computer, so it turned out that our foundation was not good, so he didn't think much about it, but you brought a lot of chips over yesterday, and this little Song's heart was alive again, but how did he know. It's not just the chips that want to improve the computer!"

As soon as Zhong Xiaomo's voice fell, Song Xiaoxu, who was sitting opposite him, put one hand behind his head and grabbed his hair, and an embarrassed smile flashed on his childish face, in fact, Song Xiaoxu was very excited on the day he received the chip, so that he shouted excitedly, of course, his rash move was naturally criticized by the teacher Zhong Xiaomo, and at that time, it was also because of Li Ming's arrival, so including Lu Jiadong, he did not take Song Xiaoxu's excited shouting to heart, at this time, after listening to Zhong Xiaomo's words, Lu Jiadong remembered what Song Xiaoxu said before:

"As long as I have the 8088 chip, then I am 100% sure that the DJS-140 computer will be smaller and more powerful!"

Thinking of this, Lu Jiadong turned his head to Song Xiaoxu's side, with a kind smile on his face, and asked lightly: "Xiaoxu, if you are given enough chips, can you really transform the DJS-140 computer into a smaller and more powerful computer?"

"This" Listening to Lu Jiadong's question, Song Xiaoxu couldn't help but hesitated, wanted to answer but didn't say it in the end, but raised his head and couldn't help but look at the teacher Zhong Xiaomo sitting opposite with a pleading eye, and at this time Zhong Xiaomo saw that Lu Jiadong was so concerned about computer problems, and recalled that at the evening seminar, when Lu Jiadong's idea was not unanimously praised by the participants, how could Zhong Xiaomo not know what Lu Jiadong was thinking, so when Song Xiaoxu hesitated, he asked Lu Jiadong:

"Director Lu, do you think our computer still needs to be further improved?"

"Chief Master Zhong, what do you think?" As soon as Zhong Xiaomo's words fell, Lu Jiadong immediately asked rhetorically, and Zhong Xiaomo first hesitated after listening to Lu Jiadong's rhetorical question, and then nodded deeply with frowning eyebrows:

"Although the DJS-140 computer is better than the previous model, its basic shortcomings have not changed, such as its heavy weight, high power, and high failure rate.

In fact, from the bottom of Zhong Xiaomo's heart, he has a positive attitude towards improving and enhancing computer performance, but as a senior expert who has been fighting in the field of electronics for many years, Zhong Xiaomo knows very well that this matter is easy to say, but it is difficult to do.

It is precisely based on the above reasons that Zhong Xiaomo had to suppress a strong positive attitude in his heart and make a helpless compromise to the reality, so when Lu Jiadong asked about it, Zhong Xiaomo would express his heart in front of this friend who has a deep friendship:

"Therefore, the DJS-140 computer can be used, but if this big guy is installed on the radar, plus the supporting auxiliary equipment, the quality of the radar will reach several tons, and you must know that the British 'Simbellin' weighs only a few hundred kilograms, let's not talk about the basic detectability, just looking at the maneuverability, we are a big step behind!"

After saying this, Zhong Xiaomo paused slightly, then picked up the tea placed next to him, took a sip to moisten his throat, and then continued: "In fact, we have also done some exploration and research on large-scale integrated circuits over the years!"

"Not to mention others, I, a student, have specially designed several integrated circuits to build a computer."

"Really?" Before Zhong Xiaomo finished speaking, Lu Jiadong's eyes suddenly lit up: "Since that's the case, can you show it to me!"

Zhong Xiaomo saw that Lu Jiadong's interest was so high, and it was not easy to refute his face, so he nodded at Song Xiaoxu, Song Xiaoxu got up and came to the filing cabinet in the corner of the room, took out a few design drawings, and then returned to his seat and handed them to Lu Jiadong, Lu Jiadong took these drawings and slowly unfolded them, when he saw the first integrated circuit design drawing, Lu Jiadong's eyes suddenly flashed a little golden light, and then he couldn't suppress his excited look, and asked Song Xiaoxu beside him:

"Xiaoxu, you designed this?"

"En!" Song Xiaoxu grabbed his hair with his hand and replied a little shyly: "When I was in college, I thought about when I could build my own computer, so I had nothing to do, so I fumbled for the integrated circuit structure diagram in my own design!"

"Director Lu! Although the large-scale integrated circuit designed by Xiao Song has some flaws, the overall idea is still correct!"

"That's right, that's true!" Hearing Zhong Xiaomo's words, Lu Jiadong couldn't help but nod in agreement, and then after looking at several other design drawings, the smile on his face became more and more prosperous, and then continued with a smile:

"These drawings are not only reasonably designed, but also the computer built according to this structure is definitely faster than the existing DJS-140 computer, and the volume and mass will be doubled!"

Although Lu Jiadong is not an expert in electronic technology, because he has been fighting in the front line of the military industry for a long time, especially most of the military equipment in later generations is inseparable from the support of electronic technology, he is also relatively proficient in the knowledge of integrated circuits, because of this, when he saw the design drawing of large-scale integrated circuits drawn by Song Xiaoxu, he naturally knew the advantages contained in it, as if he had picked up a treasure, so that the smile on his face was brighter than the summer sun:

"If it can be improved and manufactured according to this plan, I think the performance of the DJS-140 computer will definitely make a qualitative leap!"

"But the difficulty is here!" As soon as Lu Jiadong's voice fell, Zhong Xiaomo couldn't help but sigh helplessly: "The designer is fine, but we don't have any related manufacturing equipment such as semiconductor lithography machines, chemical precipitation phase PEVCD, plasma etching machines, so alas"

Zhong Xiaomo's sigh was worth a thousand words, and the whole room suddenly fell into a deep silence (to be continued. )