Chapter 48 Principles of Computer Naval Battle of Fuzhou

Li Zicheng's side started a war against Zheng Zhilong, and Chen Yufeng and Ouyang He were also busy participating in the disaster relief. Because other major leaders of Yaogang, such as Yan Boju, Qiu Laodongjia, Zhang Bengui, Li Yan and others, all led their work teams to various parts of Shanxi to carry out land reform. Chen Yufeng, Ouyang He, and Lu Chengxiang, who were at home, had to make every effort to coordinate the disaster relief.

The enrollment of the new year is about to begin, although there are many new large and small inns in the kiln this year, but it still can't meet the crowd that flocks into the kiln. Because we all know that after the enrollment of Yaogang is completed, the second Wushu and Go Grand Prix will begin. Now the whole world knows that Shanxi Yaogang is the most stable and prosperous place, and the place with the most new things, and people with a little ability want to take a look at Yaogang.

Zhang Zhimu didn't worry about these things. Now that Yang Yulin is back to work, there are many things that don't need to be distracted by herself at all, and Yang Yulin can handle them directly. What surprised Zhang Zhimu was that after Yang Yulin had two children, her body recovered very quickly, and she couldn't see any major changes in her body at all, which had a lot to do with the internal skills she had practiced all year round. However, Zhang Zhimu could see that Yang Yulin's eyes had changed a lot and became more stable. Dealing with things is also more sophisticated, and I also know how to be tactful, not so cold and hard, and I also know how to care about other people's face feelings.

What distracted Zhang Zhimu was Xiao Hongyu. Xiao Hongyu, who came back from Kaifeng with the children, went home directly to rest, Zhang Zhimu had to go over to see her every day, and Xiao Hongyu, who was irritable and couldn't stay at home, was also a little deliberately unreasonable and a little troublesome. However, Zhang Zhimu can understand that Xiao Hongyu, who is used to being in the wind and fire outside, suddenly leaves everyone's sight and is bored at home, which is difficult to adapt.

Xiao Hongyu asked Zhang Zhimu many times, what if I gave birth to a daughter?

This reminded Zhang Zhimu of a sentence in his previous life: "It's really not good, men and women are the same!" However, Zhang Zhimu didn't dare to say "it's really not good", and only said the second half of the sentence "Both men and women are the same!" ”

But Xiao Hongyu didn't give up, "You are all the same!" There are several sons, but I want this one! Be sure to have a son. ”

"Good! I agree. Zhang Zhimu deliberately teased Xiao Hongyu. The heart said, Xiao Hongyu is going to compare with Yang Yulin.

Zhang Zhimu doesn't need to arrange, the main leaders of the kiln gang are busy themselves, Zhang Zhimu knows that everything in the kiln gang is on the right track. Now Zhang Zhimu can finally calm down and give Yangchang their computer principles course. A large part of the reason why Zhang Zhimu has delayed teaching this course until now is that his preparation is insufficient. The computer principles I learned in school have almost been forgotten, and I have to reorganize them, and a large part of them is to re-study them according to my own knowledge. Fortunately, when I was in my graduation project, I was engaged in TP801 single-board computer control stepper motor. Xin Yun is the master who brought himself from the XXX Institute where the graduation project is located, and the business is very good, and several masters in the same research room are also very good. After their own efforts, they quickly became familiar with the site situation and began to enter the design work. At this time, a master said while chatting after lunch: "Xiao Zhang! You haven't been here for a long time, but I can tell that it will be easy for you to complete your graduation project. However, if you have such an opportunity now, don't be satisfied with completing your graduation project, I suggest you get the TP801 single board computer through when you have time. ”

"I want to do a good job of studying the single board computer, but I don't know where to start?" Of course, Zhang Zhimu will not let go of such an opportunity.

"I suggest you read all the SBC monitors. That's a few K's of programs. But there's a lot to say about it. If you read it, you'll really be able to grasp and understand what a computer is! ”

Zhang Zhimu now also feels that the few words that the master said at that time had too great an impact on him. Zhang Zhimu really spent most of his energy studying the monitoring program of TTP801, and although he only spent a small part of his energy on his graduation project, he still got excellent grades. What made Zhang Zhimu feel gratified was that all his course designs and graduation projects were excellent in the past few years of college. In particular, before graduation, after working hard day and night, it is considered to read the monitoring program in its entirety, although there are still some places that I do not understand, but I have a general understanding of the overview and ideas of this single board computer. Just as the master said, I really have a new understanding of what a computer is. This is also a good foundation for the ability to work quickly after graduation and to find some work outside to earn some extra money. Although the single-board computer was quickly replaced by a single-chip microcomputer in the future, it was only easier to use. But the basics are still those.

In the past two years, Zhang Zhimu has collected all his computer-related information in his mind and sorted out the lesson plans. This is really a very difficult thing, this is the development of computers, not a simple introduction of some principles.

However, Zhang Zhimu now has a number in his heart, and his thinking has gone through several times. Then Yangchang and their group have used an adder to perform an addition operation by switching preset numbers, although they have come to the conclusion that it is meaningless, but the operation is still completed and displayed with numbers. Zhang Zhimu sighed very much, the talents of Yangchang's group are too good, and Zhang Zhimu himself is also thinking that if he doesn't have advanced knowledge that is superior to them, his intelligence level will be able to catch up with them. With nothing more in their minds to distract them, they will be able to draw inferences about what they have learned and be able to push what they have learned to the limit.

However, after Zhang Zhimu straightened out his thinking, he felt that after explaining the principles of the computer, he still had to start from the simplest place, and build a computer that reached the level of a single-board computer, with digital display and key input. Perform simple calculations.

Now their office in Yangchang is a five-story office building with a large courtyard with good greenery. Lectures are now given here, but they can also be held in lecture halls.

When Zhang Zhimu came to the podium of the lecture hall with the handouts, the students listening to the lecture below broke out into applause. Zhang Zhimu knew that they had been looking forward to this computer principles class for a long time. However, Zhang Zhimu saw that today's lecture was not only from the group that developed computers, but also from many other groups.

Putting down the handouts, Zhang Zhimu looked at everyone and said, "I am in a different mood when I lecture in such a spacious and bright lecture hall. Thinking about the journey we have come through, I am also very emotional. The change in the location of our lectures also shows the path we have traveled. The development and changes of our kiln gang are too great, and I can say that you have always been at the forefront of our kiln gang on the road. ”

The following responded to Zhang Zhimu's words with a round of warm applause. They were all extremely excited about Zhang Zhimu's high evaluation of them. At this moment, the hardships along the way seem to be drifting away with the wind.

As soon as everyone's applause stopped, Zhang Zhimu raised the handout in his hand and said: "The achievements belong to the past!" You will face even greater challenges, and it is a glorious and arduous mission to develop a real computer. ”

After Zhang Zhimu said this, everyone below fell silent.

Zhang Zhimu started with the basic structure of the calculation machine. Although the speed of computer development in the previous life was very fast, in principle, it did not change much, and it is customary to call it a von Neumann machine. But Zhang Zhimu can't say that this structure is called a Neumann machine now. I can only tell you that the characteristics of the machine are:

(1) The computer consists of five parts: combinator, controller, memory, input device and output device.

(2) In the way of storing programs, the program and data are placed in the same memory, and the instructions and data can be sent to the combinator for operation, that is, the program composed of instructions can be modified.

(3) The data is represented in binary code.

(4) The instruction consists of an opcode and an address code.

(5) The instructions are stored in the memory in the order of execution, and the unit address where the instructions to be executed are indicated by the instruction counter, which is generally increased in order, but can be changed according to the operation results or external conditions.

(6) The machine is centered on the combinator, and the data transmission between the input and output devices and the memory is through the combinator.

Combinators are composed of arithmetic logic units, accumulators, state registers, general register groups, etc.

The basic functions of the arithmetic logic operation unit are the four operations of addition, subtraction, multiplication, and division, the logical operations such as and, or, non, and XOR, as well as the operations of shifting and complementing.

The combinator consists of three parts: registers, actuators, and control circuits.

Zhang Zhimu asked everyone to come up with an eight-digit arithmetic logic operation unit. For the sake of simplicity, the combinator developed first only needs to complete addition, subtraction and logical operations, multiplication and division can be implemented by software for the time being, and the fixed-point combinator is developed first

After introducing the software and hardware concepts to you, I began to introduce in detail my detailed design after several years of collation. Zhang Zhimu drew most of the circuits by himself, and some of them really didn't have time to do it, so he told everyone the principles and arranged for them to complete them.

It's still the old way, when Zhang Zhimu was lecturing, he told Yang Yulin that there was nothing important to stop the car, so he said that he had something to do, and no one would see him.

After Zhang Zhimu gave a few days of lectures to Yangchang and them, he finally explained the content of the lecture roughly, and when he was ready to spend some time discussing these contents with everyone, someone still came to Zhang Zhimu's class and asked Zhang Zhimu to answer the phone. Zhang Zhimu knew that something big must have happened, otherwise, Yang Yulin would be able to block the car in general.

Zhang Zhimu went over to answer the phone, and when he heard that Chen Yufeng had called in person, he knew that the matter was not small. Hurriedly asked, "What happened to Uncle Chen?" ”

"I just received a telegram from Fan Chengkun that they met Zheng Zhilong's fleet at sea. They are about to move and destroy them first. Chen Yufeng's words were simple.

"Can you go around, it's better not to startle the snake!" Zhang Zhimu was very reluctant that Fan Chengkun's sneak attack turned into a strong attack.

"They met eleven Zheng Zhilong's fleet at sea, and they couldn't hide. War is about to begin. Otherwise I won't bother you. Chen Yufeng explained.

"It's okay Uncle Chen, my class has just finished. I was about to discuss it with you. Zhang Zhimu said, "I'll go over right away, and I'll talk about the discussion later!" ”

Hearing the news that the war was about to start, Zhang Zhimu couldn't calm down to discuss the computer with everyone anyway.

Back in the lecture hall, Zhang Zhimu said to everyone: "I have told you too many things in a few days, and you need to digest them well." It just so happens that I have urgent matters over there, so let's digest these contents, and I'll take the time to discuss them with you. ”

Since Zhang Zhimu talked too much at once this time, everyone also needed some time to digest it, and they didn't have any opinions. Besides, they also know that it must not be a trivial matter to make Zhang Zhimu stop on the podium.

Zheng Zhibao led the team to sail this time, it was a smooth journey, in such a stable sea breeze, the sailboat was the most hopeful, there was no strong wind and waves, the ship hung full sails all the way to high speed, and soon came to the outside of Mawei Port. Just as Zheng Zhibao was about to order the fleet to slow down into Mawei Harbor, the observation post on the mast reported that an unknown target had been spotted in the distance, as if it was on fire at sea, but only a column of smoke could be seen from too far away.

Zheng Zhibao was shocked when he heard this, and the observation post didn't understand it, but he had heard of it, it must be a column of smoke from the steam ship in the kiln. Although Fang Cai was still worried in his heart that if the kiln people came, he would teach them a good lesson, but when he really heard that the kiln people were coming, Zheng Zhibao was still inexplicably nervous. This made Zheng Zhibao very dissatisfied with himself, he had also gone through many life and death tests at sea, how could he be nervous without seeing his opponent.

Zheng Zhibao ordered to observe carefully, hang the flag to inform the fleet, and prepare for battle.

Seeing that his fleet reacted quickly and hung up the flag, Zheng Zhibao was still very satisfied, indicating that there were people on duty at the observation posts of each ship. The flotilla was also ordered to become a line on the move. The entire fleet was still full of sails, and Zheng Zhibao still wanted to take advantage of the tailwind advantage to quickly approach the Yaogang fleet.

Their reaction was long delayed by the kiln gang people, who found them more than ten kilometers away.

The two big ships in Zheng Zhibao's fleet are both seven or eight thousand ton ships, and five are more than 2,000 ton lucky ships, and then six or seven hundred ton lucky ships. These ships are now the largest in the world.

Except for the Xiurong, which had a tonnage of 1,500 tons, the other four ships were all warships of more than 2,000 tons. Because the steel-hulled warships in Yaogang did not have a sail system, the height of the ship above the sea was much lower than that of the Zheng family's military ships, which was also Lin Zongwei's suggestion to learn from Zhang Zhimu, such ships have good concealment and stability at sea.

But Zheng Zhibao saw the inconspicuous kiln warship on the sea from a distance, and the pride in his heart grew again. He ordered the flag-waving to inform the fleet that one of the two large ships was to deal with the ships on the opposite side, and the other ships were two and three against one.

There was also a division of labor on the Yaogang side, with the Qinzhou and Fenzhou each dealing with one Daxi ship, and the others dealing with two or three opponent ships respectively.

The two fleets did not have any dialogue this time, and it was a life-and-death struggle to open the stance.

Muyi listened to the advice of the captains of the previous ships and did not carry out long-range shelling. Although the Yaogang warship could guide the cannon to fire from a distance of more than ten kilometers, the captains said that there was no need to deal with the warship in front. Because in today's general naval battles, ships are close to about 400 meters before firing at each other, and even then they rely on the hit rate of their shells to win. Mu Yi wanted everyone to fire 1,500 meters, but the captains in front still disagreed. They said that although the cannons on the ship could shoot for miles away, they basically posed no threat to the target. We fired from 1,000 meters, we didn't wait until we got close to our opponents to 500 meters, and we could easily end the battle when they fired at a distance of fire.

Mu Yi was angry after listening to the captains' suggestions, and said on the radio: "Fuck! I don't know who commanded the battle today. Okay, I'll listen to you, if you can't fight yourself, don't blame me for being black! ”

Fan Chengkun and Lin Zongwei listened to their conversation and were also happy. Lin Zongwei said to Fan Chengkun: "It seems that the morale of the brothers is high! ”

"Humph! With such good ships and cannons, if you can't deal with a few wooden ships, then you don't need to stay here! Fan Chengkun said while pouring Lin Zongwei freshly brewed tea.

The five ships of Yaogang were stretched wide horizontally, in order to correspond to the Zheng family's army fleet that was driving sideways on the opposite side.

Just as the fleets of the two sides were approaching a thousand meters away, the warship of Yaogang suddenly turned the rudder and turned the ship sideways.

Zheng Zhibao, who was on the other side, looked at the movements of the kiln gang people, snorted and sneered: "Just these two times, you still want to fight with our Zheng family's army?" It's a joke. In Zheng Zhibao's view, the kiln gang people turned the ship sideways obviously to point the guns on the side to the target, and they were ready to fire the guns, but the distance was still so far, far from the distance of the guns, and the ship's maneuverability declined. Approaching the firing distance is very passive, because a ship that does not move is easy to aim. How did Zheng Zhibao know that the Yaogang steam ships did not rely on sails to maneuver, and the distance from which the Yaogang people fired their guns was different from theirs, and the future naval battles were completely different from the tactics they had always adopted.

Zheng Zhibao saw the Yaogang people turn the boat sideways, they didn't, and he also wanted to take advantage of the tailwind to quickly approach the opponent. But just as they approached the kiln gang warship for a thousand meters, the kiln gang people suddenly opened fire.

The steel-hulled warship in Yaogang was modified to have one 203 mm main gun on the foredeck and two 130 mm cannons on the aft deck. This time, the Yaogang warship turned the ship sideways, preparing to attack the opponent with the four 130 cannons on board. The kiln men didn't even want to use the 203mm cannon, because it would be a waste to deal with the 203mm cannon of the wooden ship.

Zheng Jiajun's big boat learned the warship technology of Hongmaofan (Dutch), and the front and rear ships were very high, and Zheng Zhibao stood on the front ship tower and watched the Yaogang fleet. He saw the kiln warship much shorter than himself, and he was already thinking about what would happen after the victory.

The four 130 cannons on the Fenzhou aimed at the ship, a distance of one thousand meters, and the aiming hand could see Zheng Zhibao's eye hair clearly through the gun scope. Hearing this, the captain gave the order to "fire", and the aiming man waited for a moment before waving, and the gunner saw his gesture and pulled the cannon rope. Because the current guns do not have automatic aiming devices, it is necessary to wait until the ship has a short period of stability when the ship floats to the highest point or trough with the waves, and the gunner must use this short time to fire quickly.

Four shells from the Fenzhou were fired at the same time at the ship on which Zheng Zhibao was riding. A cannonball hit the front of the ship directly, and the 130 cannonballs blew up the bow of the ship and the shipbuilding, and before Zheng Zhibao, who was dreaming, could figure out what was going on, he felt that he had flown into the sky like a petrel, but with him flew up countless pieces of wood on the ship's building.

Another shell passed through the front mainsail and exploded next to the mainmast, breaking the mainmast directly, the broken mainmast creaked to one side, the heavy mainsail and the ropes on the mainmast, pulling the ship outward, and the cannons and personnel on the deck of the ship slid to the side. Soon the tilt was aggravated by the tilting of the fore and aft masts and sails, and at last the ship lay sideways on the sea.

But at such a close distance, four shells hit two, which made the captain of the Fenzhou furious. The gunners also felt that they had lost face, and the next four shells hit three of the ships lying directly on the ship, and these three shells hit the hull directly. No matter how sturdy the wooden ship is, it can't withstand the bombardment of 130 heavy guns. The ship immediately became a pile of garbage floating on the sea.

The luck of the Qinzhou here is even worse than that of the Fenzhou. Only one of the four shells in the first round was considered to have hit the opposite boat. The shell hit the ship near the waterline at the front of the side of the ship, and the exploding shell blew the ship open in one fell swoop. Several people on the ship's front floor were also shaken into the sea by the violent explosion. With a large amount of seawater pouring in, the big ship began to tilt a little despite its size. One of the four shells hit the captain, making the captain of the Qinzhou almost want to jump into the sea in anger. The gunners on the Qinzhou were too ashamed to look up, but they knew that they must have missed such a close distance because they had encountered an unstable wave. The second shot, the Qinzhou was a little late, but this time they hit three of the four shells. Three 130-heavy artillery shells shattered the huge-looking ship. As if still angry, the Qinzhou launched another attack on the ship, which had been scattered and spread out on the sea, and kept beating them into a large floating object scattered on the sea.

The other three warships also had good results, and the Xiurong also smashed a two-thousand-ton warship and a seven- or eight-hundred-ton warship. The Zezhou and Liaozhou also dismantled a 2,000-ton warship each.

Under the sudden attack, Zheng Zhilong's fleet was suddenly chaotic. Before they could understand what was going on, two of the proud ships in their hearts were smashed to pieces, three two-thousand-ton ships and one eight-hundred-ton warship, which was simply terrible. In the past, naval battles were set on fire, and even if it was a leak, it was a great loss, but how could there be such a thing as now, and the whole ship was shattered all at once. The ships of Zheng Zhilong's fleet, which were not attacked, immediately turned the rudder and wanted to escape, but the sailboat that rushed over at high speed was so easy to change the rudder. The Qinzhou and Fenzhou, which had finished fighting the Daxi ships, also joined the hunt for the remaining ships. The Zheng Jiajun warships that rushed closer were reduced to pieces one by one, and the remaining few ships saw that there was no way to escape, so they lowered their sails and surrendered. However, the ships were ordered not to accept their surrender, and soon their ships were reduced to pieces and floated on the sea. The fight went on quickly, and the opponent had little chance of fighting back.

Just when Mu Yi issued an order for the fleet to re-carry out the original formation and move forward as planned. The observation post reported that there were two merchant ships in the vicinity. Depending on the location, they may have seen a naval battle.

Fan Chengkun thought for a while and said, "If you see it, you can see it!" Anyway, it was too late for them to inform Zheng Zhilong. ”

Mu Yi muttered, "I don't know if it's good or bad if I leave it alive!" ”

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Mt. Fuji erupted, Japan was earthquaked. --Progress of "Memories of the Southern Song Dynasty".