Chapter 47 Disk Storage Chinese Character Processing

Li Yunhe still knows a little about computers, "I heard that several of Mr. Lu's students used computers to calculate a lot of data for the mechanical analysis of steel cable suspension bridges. They also used computers to calculate a lot of data on the wing lift of airplanes. ”

"Mr. Lu, they also calculated the data table of the principal and interest month by month after borrowing the silver, and based on this, Mr. Lu was the first to ask me for a computer. In the future, big data calculations will be performed using computers. Zhang Zhimu said, "Yang Chang, they are studying disk storage. If this disk storage can be successfully developed, you can use the computer to store the temperature and time of the heat treatment of the material, accumulate a certain amount of data, and you can choose the best parameters. Besides, it is much more convenient for us to have a computer in the management of our factory. A lot of people can't do things that computers can easily do. Also, in our railway operation tube, rely on people to manage the track do not dare to put too many trains, if there is a computer to participate in the management, then the scheduling efficiency is high, the train density can also be increased, the same railway, the capacity can also be greatly improved. ”

"Oops! I'm a little dizzy when you say that. How much more can a computer do? Li Yunhe touched his head and said.

"Therefore, I would like to ask Yang Chang and them to send someone to prepare well, and give a lecture on computer science to the cadres of our kiln gang a year ago. Let everyone know about computers. Next year, we will recruit a few more classes of students for the computer science major. Zhang Zhimu said, "In the future, computer science students will still be the same as electronics majors, and they will never be enough." ”

Yang Chang led a few people in, and was surprised to see that Li Yunhe and Lu Qi were here, "Oops! The two leaders are here, and it just so happens that I have something to report to Mr. Zhang, and I have something to tell you. ”

Yang Chang has been working with Li Yunhe for a long time, and Li Yunhe is not polite, "What are you talking about!" I've been busy in Taiyuan for a while, and I don't care about your business. How's that disk research? ”

"That's what I'm here to tell Mr. Zhang about this!"

"That's it! Let's all sit down and talk! Zhang Zhimu said.

After everyone sat down, Yang Chang said: "Mr. Zhang, Li Di, after their stepper motor is finished, we will start to manufacture disk machines." Now that this disk drive is done, we can now read and write data on the disk according to the track sector cluster as you said. Although slower, there is a lot of room for improvement. But the problem is that this thing is connected to the computer, and when it is used, the action is complicated, and the computer has to stop and can't do anything else, which is too time-consuming. This is still a disk drive, and if you say that you have to take a few more, I'm afraid it will be troublesome. ”

Zhang Zhimu understood that Yang Chang used the computer to directly control every action of the disk machine, and the time it occupied was too long, so he smiled and said: "Your way of working is not right. The disk machine should have its own independent control system, which only accepts the simple operation instructions of the computer, and then judges and directs the movement of the head and other operations. This requires you to standardize some basic operating instructions. ”

"Does it mean that the disk itself needs to be controlled by a simpler computer?" Yang Chang asked.

"So to speak," Zhang Zhimu said, "in the future, your disks will have multiple heads, multiple disks, faster speeds, faster read and write operations, which requires an independent control system." This control system should be coordinated with the disk operating system on your computer's side, so that it can be used interactively. ”

"Oops!" Yang Chang said, "Then the price of the disk system is very high!" ”

"In the future, computer peripherals will be very expensive for a long time to come." Zhang Zhimu said, "The disk you are developing now will have a large increase in track density in the future, so that the disk recording density will increase greatly and the capacity will also increase significantly." Such disks should be strictly sealed in the future. In addition, in the future, when the density of the disk increases and the speed increases, the head and the disk surface cannot be rubbed into contact, and the head suspension technology can be used. In fact, after the high-speed rotation of the disk, it will inevitably carry the flow of air, so that the flowing air will form a gap between the head and the disk, which can greatly improve the service life of the disk. ”

"Hmmm! Mr. Zhang's suggestion is very good, and we people have been thinking about it again, this way of working, the magnetic powder on the disk is to use chromium magnetic powder, and it will soon be worn off. The speed is even higher. If only this isolation could be achieved, the problem would be solved. Yang Chang said.

"Also, in the future, when your disk control system is more integrated, the size of the equipment will be much smaller. On the basis of this equipment, a movable floppy disk can also be developed. The programs and materials compiled by each of us can be recorded on this floppy disk, and it will be more convenient for us to use computers in the future. ”

Li Yunhe and Lu Qi didn't react to Zhang Zhimu's words, but Yang Chang and the few people he brought with him talked to each other excitedly, and they all understood what it would mean if these things were realized.

Yang Chang said: "This direction pointed out by Mr. Zhang has solved a lot of our confusion, and if we realize these, our computer can enter the stage of practical application." After speaking, he said to Li Yunhe: "Head, there are some things that we can't do here, and you still have to coordinate those refined things." The work in our workshops is busy, my work is high precision, and the amount is small, and everyone is unwilling to do it! ”

"Huh! I'll arrange this for you! Li Yunhe understands Yang Chang's difficulty, the tasks of each unit are full, and it is not easy for Yang Chang to process their own work.

"Yang Chang, you are here, I have to assign you two more tasks, it just so happens that Lu Qi is also here, let me talk about it together." Zhang Zhimu said, "The next problem you have to solve is the display and printing of Chinese characters. ”

"There are too many Chinese characters," Mr. Yang said, "and we have discussed this matter, and all the Chinese characters add up to one or two thousand." It would be even more difficult to show different glyphs. The display technology is not bad, but it is difficult to print Chinese, and it is impossible for us to build a printer with so many Chinese characters. ”

"No matter how difficult it is, we have to solve it," Zhang Zhimu said, "If we don't solve this problem, the application of computers can only be something that you can use in a small area." Actually, the man's character pattern dot matrix, I have already asked Editor-in-Chief Fan to come up with them. Now there are 24x24 dot matrix and 16x16 dot matrix font molds. I think that if we want to display all the complex strokes clearly, we need to use at least 24x24 dot matrix character molds. You can use masking technology to solidify the character mold of Chinese characters. The problem now is that you can only encode 126 characters with one byte, and if you want to encode Chinese characters, you have to use two bytes to encode 16 characters. So your current display software has also been modified. Of course, the display method has not changed much. ”

Yang Chang said: "This matter is not too difficult from a technical point of view, the display technology is the same, but the word mold dot matrix needs to be used 24x24." However, one difficulty is how do we input Chinese characters into the computer? ”

"You have a few options, one is that we have a ready-made telegraph code, and we have the area code that we encode for Chinese characters, and then there is Hanyu Pinyin, which we have been promoting. In the future, we will be able to develop the input methods we need according to the situation. In order to improve the input technique, we can also study the associative technique of kanji input. ”

"Mr. Zhang, we can understand these input methods you said, but what is that association technology?" Yang Chang asked.

"To put it simply, for example, after we enter a'me', the most common thing is that the back is 'we', so that after we enter a 'me', the 'we' will be automatically displayed later, is it not without other input methods, just enter the word 'we' into the computer?" Mr. Zhang gave an example to Yang Chang and said.

"Hmmm! But how does the computer know that the word 'we' is followed by 'I'? Yang Chang asked again.

"This requires us to do the work of counting the frequency of Chinese characters. Count which words are related to which words according to frequency. In the future, we will have more files entered into the computer, so that the computer can count by itself which characters follow the most Chinese characters. This has to be built up slowly. Zhang Zhimu knows that there is still a lot of work to be done in this matter.

Seeing that the few people who followed Yang Chang had finished recording with a pen, Zhang Zhimu said again: "The more troublesome thing is the printout of Chinese characters. It is not possible to print Chinese characters directly with the current printer, but we can also use dot matrix printing technology. In the past, our printers used to print the ribbon at the specified position with the word hammer to print the glyph directly. If we replace this character hammer with a dot matrix composed of 24x24 needles and print it according to the character pattern, then can we print out various Chinese characters according to the different dot matrix? However, this kind of printer is much more complicated, and like the disk, it needs a control system. ”

"Mr. Zhang, your idea is so good, in this way, you can not only print Chinese characters, but also print various graphics. However, this printer is completely different from our original printer. Yang Chang said.

"That's why I asked Lu Qi to participate in this matter," Zhang Zhimu said to Lu Qi, "You have to organize a few masters to participate in Yang Chang's printing team." Then Zhang Zhimu drew the basic structure and schematic diagram of the printer for them, and said: "The paper rolling mechanism of our printer is basically the same as the original printer, but instead of printing the word hammer, a stepper motor is used to move along the guide rail with the print head left and right, locate the printing position, and then use the print head to print Chinese characters and graphics." The difficulty of the printer is in the print head. This requires a very strong print needle to concentrate intensively in the print head, and then use an electromagnet to control the needle to print downward. ”

Lu Qi looked at the print head and printer structure diagram drawn by Zhang Zhimu, and said: "The material of this needle is very important, it is so fine, it must have a certain hardness, it must not be too brittle, and the service life is also high, which is a bit difficult." Then he raised his head and said to Yang Chang, "The mechanical part, you will hand it over to us, I don't understand the control part, you are responsible." All I need is for you to give me the request. ”

"That's great!" Yang Chang said, and said to Zhang Zhimu, "Mr. Zhang, if our disks and printers are made, it will be much easier for us to develop complex mechanical and electrical equipment in the future." ”

Li Yunhe also interjected: "If we can develop such a complex thing, many things will be easier to handle in the future." ”

"Mechatronics is one of our future directions," Zhang Zhimu said, "I just said that next year we will recruit students for computer science." In my opinion, Yang Chang has made up our minds to set up a computer department in Yaogang College. This computer science department specializes in training computer professionals. In the future, computers will be divided into research hardware machines, software, peripherals, and other specialties. We prepared early, and these students graduated in four years, just in time for us to use a large number of computer talents. ”

"Yes, yes!" Yang Chang said, "We are going to take precautions, and now the graduates of the electronics major have solved a big talent problem for us." This is thanks to the enrollment of students four years ago! ”

"Then this matter is decided, Yang Chang will be responsible for the establishment of the computer department, and you will be responsible for teaching the main professional courses. The basic courses are in charge of the Yaogang College. Zhang Zhimu said.

"Good! We're in charge of that. Yang Chang happily agreed.

Seeing that Yang Chang and their affairs were finished, Lu Qi asked: "Mr. Zhang, you have seen the roller ladder we developed for the subway station a few times, and we have also improved it according to your requirements." If you have time, will you go and see again? ”

"I'm not going to look at it, you're already doing a good job." Zhang Zhimu said, "However, I will see if I can use it where to try it, and I can find problems after using it for a long time." ”

"Which bridge should you put it on?" Li Yunhe suggested.

"No, no, I think so," Zhang Zhimu said, "you discuss with Mr. Lu, let's rebuild a staircase in the Yaogang Department Store and install a roller ladder, so that everyone will try to do it when they get there, and bring more popularity to the mall." ”

"Yes, yes!" Li Yunhe said, "In this way, there are many people there, and it can test the effect of rolling the ladder more." ”

"Also, last time they discussed building a few pedestrian bridges on the Xiaoling River, I see if it can be like this, let's not build bridges, that would take up too much space, it is better to build a river bottom passage from under the river, and build rolling ladders on both sides of the channel, so as to solve the problem of crossing the bridge under the mountain." Zhang Zhimu said.

Lu Qi said: "Then we have to cut off the entire Xiaoling River!" ”

"No, just dig down from both sides, and pour reinforced concrete as you go. But the waterproof thing needs to be done well. Zhang Zhimu said.

"Huh! Such a river bottom passage will also be a scene of our kiln. Li Yunhe said.

"It's not just a matter of scenery, as long as the waterproofing is done well, there must be rainwater drainage equipment, and if we get it right, we can have fewer bridges in the future, save land and not affect river shipping." It's worth trying! Lu Qi said approvingly.

"Okay, it's settled! Specifically, I have to study with Mr. Lu, and the underground passage can't be touched by the subway. Zhang Zhimu said.

After everyone left, Yang Yulin came in and reminded: "The emperor's affairs, don't forget to call back." ”

Zhang Zhimu patted his head and said, "I really forgot about this." I think let Yang Jing pick up the emperor in person! ”

"I think Yaogang is that you take the emperor seriously!" Yang Yulin said with some dissatisfaction.

"The emperor must not have an accident," Zhang Zhimu said, "With the emperor here, we don't have to worry about many things." There is no reason for the forces to attack us. ”

Yang Yulin wanted to get through the phone in Beijing, handed the phone to Zhang Zhimu, and waited for a while, Emperor Chongzhen came to answer the phone, and the emperor's voice came out of the phone, "Zhang Dongjia?" ”

"It's me! How is the emperor doing? ”

"I'm fine! In the past two days, your mall has opened, and I have gone to cut the ribbon for them. ”

"I heard about it, and I want to thank the emperor!"

"Thank you, I also want to go out and have a look, I'm used to being free in the kiln, and it's not so easy to go out when I return to the Forbidden City."

"Huh! It just so happens that you are coming to Yaogang for the New Year, aren't you free again? ”

"Huh! Right, right! The emperor said, "It's not just me, those adults heard that I was going to the kiln for the New Year, this chaos!" I'm still fighting to go! ”

"It just so happened that we had a couple of motorhomes and a couple of coaches. This time, I asked Yang Jing to pick you up in Beijing, bring the bus and RV, and bring ten more cars. This can bring a lot of people over. There is no sin in the safety of the road. And the guards rode and followed. ”

"Great! I can get to the kiln gang after falling asleep in the car, which is so convenient. ”

"I'll let Yang Jing and them leave to pick you up in mid-November, and how about the emperor set off to Yaogang in early December?"

"Good! In this case, we will have a little more time. "Emperor Chongzhen is very satisfied.

"This is the end of the matter," said Zhang Zhimu, "and there is one more good thing I want to tell you." We've pretty much solved it on the Burmese side. The king of Burma is now in our hands, and we have controlled the army of the king of Burma. We have eliminated all those who are a threat to us. Here's how to govern Burma. We're going to send some officials to govern there, and we're going to send some teachers to teach them Chinese characters. They are not allowed to use the Burmese script in the future. ”

"Good, great!" Emperor Chongzhen said, "I threaten from two directions, one is the Mongols in the north, and the other is Burma. They fought with us for almost a hundred years. We dispatched a large army, but we couldn't spread it, and we couldn't go without soldiers. It's great that now you've dealt with them once and for all. Still, I'm afraid you're too kind. It is not good to be too merciful to govern them. ”

"Not this time," Zhang Zhimu said, "we have captured more than 300,000 of their soldiers, and we are going to transport back 150,000 to the northwest to build roads and open mines." Next year, we are ready to unify the entire southeastern peninsula. I have already asked Li Zicheng to return to Yaogang and discuss with him how to completely resolve the affairs of the Southeast Peninsula next year. ”

"Hmmm! Li Zicheng and they did a good job in Annan, and this time they have to discuss the matter over there. "Emperor Chongzhen is still very generous, and he has no grudge against Li Zicheng.

"Huh! I'm still worried that the emperor doesn't like this Li Chuang thief, it seems that I think too much! ”

"Hey! Li Zicheng is now a hero, how can I be so stingy, here and there. Emperor Chongzhen said.

"In the past, Li Zicheng did some things that were very excessive, and this year I will ask Li Zicheng to make amends to you!"

"You don't have to!" Emperor Chongzhen said, "As long as Li Zicheng can continue to do something tangible for the imperial court!" ”

"Oops! If Li Zicheng knew that the emperor was so generous, I don't know how moved he would be! ”

"Okay, let's not talk about that, let's talk about Japan!" Emperor Chongzhen was concerned about the direction of Japan.

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New progress in "Memories of the Southern Song Dynasty": the Battle of Yashan, the defeat of the Yuan army, the counterattack of the Song army, and the landing in Fuzhou.