The next day at work, Li Guocheng sat at his workstation and thought about how to achieve scientific computing.

When I heard the demand at that time, I immediately thought of the scientific calculator of later generations. However, later generations of calculators were made of single-chip microcomputers and liquid crystal displays, and the current technology does not have them.

The special chip is actually easy, it is a set of multipliers and registers, but how to display, whether it is a light-emitting diode or an LCD screen, requires a lot of time to invest in research.

Light-emitting diodes are not based on monocrystalline silicon, but are made from potassium phosphide or gallium arsenide as substrates, and there is no time and energy to invest now, and the most realistic way is to use CRT displays, which are the kind of big-ass displays.

Thinking of this, Li Guocheng decided to make a simple calculator first, which consists of a special chip, a display and an input keyboard. The dedicated chip can be placed together with the input keyboard, similar to the simple scientific calculator of later generations, only addition, subtraction, multiplication and division, square root and power operation, and only the display part is replaced by a CRT display.

Li Guocheng spent less than an hour hand-drawing the structure of the calculator and the specific parameters, found Wu Liankui, and asked him to ask for someone in the ministry, and the requirement was a technician who knew how to monitor the TV.

Then Li Guocheng began the design of the special chip, and finally used a total of more than 2,300 NMOS tubes and a three-layer mask to complete the design.

This is the first time that Li Guocheng has used multilayer mask templates for chip design, and the number of NMOS tubes has directly exceeded 1,000.

The total time is more than 2 months. If you don't have the mental power to simulate the simulation in your mind, it would take 1 or 2 years to estimate the time by hand. The spiritual power of mutation, I didn't expect it to be so helpful in chip development.

Li Guocheng's mind is like installing AD, EDA and CAD software, and it is a three-dimensional full-angle perspective, which can be scaled at will.

He also sometimes thinks that his soul piercing only strengthens his spiritual power, that is, he does not give himself a farm, solve the problem of feeding the people around him, and does not provide the conditions for continuing to cultivate immortals, so that he can punch the world. Could it be that in the dark, his mission is chip development.

Just through the soul, the chalcedony liquid in the secret realm is only enough to complete the physical strengthening and stimulate the spiritual power to generate ideas. Then I happened to encounter the eight methods of carving, when boring carving, it is very easy to enter a state of epiphany, and then the spiritual power continues to change until it is subtle.

No matter how you think about it, I think it is paving the way for chip R&D and manufacturing. Forget it, I don't dare to think about it.

As soon as Wu Liankui's application was submitted for a week, the ministry sent two people, an old engineer in his 40s, who had been studying TV monitors, and his name was very domineering, called Hou Zhenhua. The other is his apprentice, 25 years old, named Hu Bing.

At the beginning, when I heard that his team leader was a junior high school student, maybe he had experienced too many beatings in society, and his face was quite calm, but the disdain hidden in his eyes could be seen without perception.

His apprentice was obviously lacking in cultivation, and his face was full of disbelief and disdain. Li Guocheng didn't care, he would have such a performance if he was himself, maybe not as good as them.

Everything depends on strength to speak, when Li Guocheng explained the principle of the calculator and the display requirements, both of them were obviously suppressed, when Li Guocheng said the principle of the display tube, after improving the direction, they were even more completely convinced.

Now black and white display technology, when the principle of color display is proposed, the two of them are even more verbal teachers, full of infinite expectations and desires for the research of displays.

With the help of Li Guocheng from time to time, the basic principles of the display have now been run through, and the next thing is to implement it. The winding of the high-voltage wire package in the middle has not been up to standard, and it was also solved by Li Guocheng himself who designed and wound it, and wrote a complete production process.

This time it was designed according to mass production, so at the beginning, Li Guocheng did not consider carving the shell and buttons, but directly designed a mold in his mind, and after pouring it with aluminum alloy, Li Guocheng personally started fine-tuning and polishing.

The specific plastic color allocation was handed over to Zhang Zhijing and Zhou Xiaojuan.

After re-examining the mask template, Li Guocheng personally carried out the production of the first version of the chip. The process was relatively smooth, and all 18 finished chips passed the test.

Half a month later, the monitor and keyboard have been made with samples, connected to the wire, and a calculator very similar to the desktop computer of later generations appeared in front of everyone's eyes. There is no mouse or standard keyboard, just a black plastic keypad attached to the sheet metal chassis, and the circuit board for the dedicated chip is placed in the chassis.

Because of the use of CRT display, the battery can not meet the demand for power, Li Guocheng specially designed the AC/DC power supply, 400W, which is now a big horse-drawn car, which is also prepared for the real computer in the future.

When considering the overall design, in the end, Li Guocheng still referred to the structure of the desktop computer of later generations, anyway, there is no one in the world now, and this kind of chassis architecture will be the Chinese standard in the future.

The special chip is named "Kaitian 101 processor", and the calculator is named "Shuguang 101 computer", which means a gift to the National Day.

A total of 5 prototypes were built and tested in-house for 10 days, none of which had problems. In order to verify the correctness of the calculations, all the finances of the rolling mill participated in the 10-day test, and 22 finances took the abacus to continuously check the calculations.

This is a technical calculation, 4 digits should be reserved after the decimal point, and 12 digits can be calculated for integers. Square roots and power operations are all involved in the technical section.

These 10 days are almost closed tests, although Li Huaide prepares delicious meals for everyone, and the meals are oily, but after 10 days, everyone involved is like a serious illness.

Li Guocheng participated in the whole process, checked the whole process, and with the blessing of mental power, it was extremely easy. But in order to share the joys and sorrows with everyone and not show any difference, he also made himself unkempt and tired.

Li Huaide pulled two computers in a car and went straight to the ministry, but Li Guocheng did not participate on the grounds of exhaustion.

A couple of things happened halfway through.

The first piece is the chip production line, and the ministry requires the production of 5 sets, which are built in Shanghai, BJ, Chengdu, Wuhan and Tianjin. The rolling mill must not only provide a full set of equipment, but also provide a package of education.

The second, a complete set of drawings for the Dawning II type, was provided to the earliest 18 Arhats to fully upgrade the existing production line, fortunately, without the need for equipment and personnel from the rolling mill.

The third thing is that the big leaders visited the construction of the Shuguang II machine tool factory, as well as the focus on the dust-free workshop. He gave a high evaluation, and directly instructed the Security Bureau to strengthen the security of the laboratory and increase the investment in the laboratory.

There was no video recording of the whole process, and the newspaper only reported that the big leaders visited the rolling mill and gave important instructions, without any dry goods. However, the internal control is described in detail, with a focus on the laboratory.

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(End of chapter)