Siheyuan: The Era of Core Generation

Chapter 119 Dawn No. [-]
Zhao Ye and his team's design work is progressing smoothly. The reason why it is so smooth is that the whole team has been tempered in the past two years.

Zhao Ye completed his part of the work early on. He did not intervene in other people's work groups, and went to Shenji and Microelectronics Institute.

In the meeting room of No. [-] laboratory, Zhao Ye organized another small meeting.

"I'm looking for everyone to come today, I want to ask everyone to help make a gadget." After Zhao Ye finished speaking, he distributed materials to those present.

Qin Gong from Beijing Yiji was also here this time. Speaking of which, he lost the bet with Zhao Ye, and he really came to Zhao Ye to "plead guilty".In front of everyone, Zhao Ye can't really let a nearly 40-year-old engineer kowtow to admit his mistake, can he?This is not a matter of principle!
It's just that this Qin Gong still has a very strong character, if he loses, he loses, and he wants to be Zhao Ye's apprentice!

How dare Zhao Ye really do this!It doesn't work even if you occupy the reason.In the end, there was no other way, and Director Yang directly "received" the person.Now, Qin Gong has become the deputy director of the technical department of the joint factory.

The reason why it is the technical department instead of the technical department is because the administrative level of the joint factory has been raised again.The technical department has also been upgraded to the technical department.

Everyone goes up with the tide, and Zhao Ye is no exception.But he didn't care about this in Donglai. For a time traveler, especially Zhao Ye, money is not a problem at all.If you are really short of money, just find a nearby gold mine, collect some gold-bearing stones, and you can extract gold from it in minutes.This is also a function that Zhao Ye discovered some time ago.

"Gong Zhao, what is this thing? The structure looks quite complicated." Shen Ji's Director Zhang asked.

"Oh, this is a floppy disk reader I imagined. It can be used with floppy disks to access some data." Zhao Ye explained to everyone.

"That's what I think. Have you seen the tape? In principle, it is similar to that one, but the structure is different."

After speaking, Zhao Ye began to draw a picture on the blackboard behind.First draw a circle, then draw a concentric circle with the center of the circle as the center, and draw 32 circles.Then on one of the outermost circles, punctuation began again, directly dividing a circle into 16 parts.

Zhao Yeyou re-drawn an arc on the blank space of the blackboard to represent one of them. On the enlarged schematic diagram, a number 64 was marked.

Only at this time did Zhao Ye explain to everyone again. : "Look, this is the disk I want to make. On the whole, we divide a circular disk into 32 concentric circles. I call this "track", and then divide each track into 16 parts. Then a A share is a sector. On each sector, we are planning a storage location of 64 bytes, that is, 512 storage units. At the beginning and end of each sector, we plan a byte each for Store address information. In this way, this disk can theoretically store 15872 Chinese character information. Of course, the actual number is less than this, because there are some other fixed information that need to occupy some space. But it can definitely exceed 13000 The storage space of Chinese characters."

Everyone listened to Zhao Ye's words and felt a little confused. Why are you telling us this?This doesn't match up with the information we have.

"The information in everyone's hands is a device for reading and writing the disk I designed. Let's look at the design drawing..." Zhao Ye explained to everyone the structural design of the floppy disk reader in detail, and analyzed the processing and manufacturing process of this device. difficulty.

For those who have experience in automation design once, this thing is indeed a bit difficult, but it is not very difficult.The servo motor has a ready-made design scheme, and the read-write head is a difficult point, but the difficulty lies in how to make it smaller.There is also a ready-made solution for the position sensor. This does not require laser equipment, but the floppy disk is fixed in position. As long as the position of the magnetic head is controlled by the servo motor according to the read position information, the positioning function can be realized.

As for the manufacture of floppy disks, Zhao Ye did not plan to put them here, this is not his strong point.He intends to hand it over to Factory 718 to use a thin plastic sheet on which the principle of a photolithography machine is used to irradiate the chemical layer with ultraviolet rays to plan out the tracks and sectors.Then use iron oxide as the magnetic induction material and fill it into the planned storage location. In this way, as long as it is covered with a layer of polymer material to prevent the iron oxide and air from contacting and interfering with each other, the core of a floppy disk is completed. .Then polish the disk core and put it into a special case, and a floppy disk is completed.

Although the current technology of this thing cannot achieve much storage space, there is still room for improvement.For example, double-sided storage, such as expanding the storage unit of the sector, and increasing the number of tracks.

On the classic 3.5-inch disk of later generations, people achieved a storage capacity of 1.4MB.However, the processing precision is relatively high, and now Zhao Ye is only able to achieve 32KB of precision.If the reader can come up with dual heads, it can be doubled to 64KB.

Of course, it is a little small, but compared to the hard drive that is as big as the current cabinet, this small thing is still very convenient.

The floppy disk reader or access device officially started the research and design of the manufacturing process.For the current Shenji, Microelectronics, and joint factories, this is difficult, but not too big.Their biggest difficulty at present is how to make this thing small enough.

Because their devices were small, floppy disks only made possible small ones.Finally, after a long period of experiments, Zhao Ye and the researchers here set the size of the floppy disk at 10 centimeters.In other words, it is a little bigger than the 3.5 inches of later generations.

After the size of the floppy disk was determined, Zhao Ye started to contact the 718 factory.The production equipment is not a problem. When Zhao Ye started research in the floppy disk project team, he had already figured out the equipment for producing floppy disks in advance.This is really not too difficult for a joint factory that can produce automated lithography machines at this time.It is nothing more than simplifying the equipment, replacing the silicon wafer with a plastic sheet, and adjusting the intensity of the light and the lens.

The difficulty of this technique is the material. Fortunately, this is the simplest problem for Zhao Ye.

The size is finally determined, and the equipment is adjusted and fixed according to this size.Finally, try to produce it for testing.

Although 718 is a military-industrial unit, Zhao Ye's joint factory is half a military-industrial unit.In addition, the two units have cooperated many times after all, and this is the improvement work for Shuguang No. 718, so the leaders of Factory [-] feel that this is a duty-bound matter.

The fact is the same, their report was typed and approved by their superiors on the same day.The first piece of equipment was sent to Factory 718 that night.

As for the production of the floppy disk casing, it was not a big problem for the 718. In a few days, a plan was drawn up, and after confirmation with Zhao Ye, production began immediately.

As for the floppy disk reader, it was made by the people of Shenji in the experimental workshop of the joint factory.Because it is not a mass production, there is no special production equipment, and only the general-purpose machine tools here are used to process a batch.Of course, many fine parts were rubbed out by Zhao Ye with the hands of technicians.

If it is going to be mass-produced in the future, then it will be necessary for the Shenji General Factory to cooperate in the development of special processing equipment.

In the midst of busy work, another few months have passed, and now the year is approaching. Zhao Ye led everyone to assemble a new microcomputer again.This time, the improvement of Shuguang No. [-] is relatively large, so everyone unanimously decided to name the new model Shuguang No. [-].

The current Dawn No. [-] is closer to Zhao Ye's ideal computer.He has two monitors to choose from. One is the dot-matrix liquid crystal monitor of the original Shuguang No. [-], but it is a little larger than the first generation, but it is also limited in size.This technique is really not that easy.The second option is to use a TV instead. A signal converter is added to the Shuguang No. [-], and a special plug interface is also reserved on the chassis.

In addition, there are hard disk interface, interconnection interface, floppy disk reader.The distance from the computer in Zhao Ye's impression is getting smaller and smaller.This gap mainly exists in the performance of the processor.The idea with external devices is that the two are almost "on the same page".

This time, in the laboratory, a total of six Shuguang No. [-]s were built to test the function of multi-device interconnection.Professor Ci and the others specially found data with a very large amount of calculations to conduct experiments. One computer was used as the main computer, responsible for the decomposition and integration of computing tasks, and the other five computers performed calculations separately under the command of the main computer.The calculated data is interconnected through the host at any time and on the spot, realizing the parallel operation of multi-processors and multi-machines.

At the end of the first day of the test, the good news was reported to the relevant departments.Before all the testing work was completed, the production task from the superior was sent to the factory.

The joint factory has once again invested in the production of new models.The production this time is also a multi-factory collaboration, and even the heavy-duty Shuguang Factory has received corresponding production tasks.

Why, because all the automated lithography equipment is there.

Processors cannot be done by them, but some chips used in peripheral devices, those devices are still competent.The joint factory mainly uses second-generation lithography equipment to process the core processor, and other supporting factories produce other auxiliary components, and then gather them again in the assembly workshop of the joint factory for assembly.

Zhao Ye waited until the overall test was completed, and he had a premonition again. He estimated that this Spring Festival would not be able to be spent at home again.

The fact is the same.In almost the same form as last year, the first batch of completed Shuguang II was again requested to be sent to the Northwest as soon as possible, but this time it was not [-] units, but [-] units.

The unit is not just one unit, but has become nearly thirty.Without thinking too much, Zhao Ye once again boarded the truck heading for the Great Northwest.

(End of this chapter)