The ups and downs of life in the Siheyuan

Li Yuan called the young man in front of him Teacher Ni. In fact, he was just a student in Class 9.

This 911 computer was mainly developed by the Mathematical Class 0 and the Calculation Class 9, and the project leader was Director Jin.

Students from Class 0 were responsible for research and proposed machine word lengths, machine command systems, etc.

Ji 9 is responsible for the overall computer design, module design, and finalization of basic unit module circuits.

Li Yuan completely put down his dignity in order to learn computer knowledge.

He knew that as long as he continued to learn about computers, the system would definitely give him feedback.

Start with small tasks such as serving tea and water, sweeping the floor, and tidying up the house, and gradually integrate into the team.

Fortunately, Li Yuan has the reputation of a master, so everyone will give him some respect.

Director Jin often teased Li Yuan as "Master", so the nickname "Master" became a common name for him among laboratory staff.

"Master, help me get some capacitors."

"Master, help me weld a few modules."

. . . . . .

In later generations, Li Yuan became a master of welding in this laboratory due to his experience in assembling radios and completing his studies.

After all, they don’t have professional welders yet.

After so many years, many welding requirements have been forgotten, but even the knowledge saved in memory is enough for the present.

Therefore, many classmates and teachers like to greet Li Yuan and help them solder logic modules.

Among them, Liu Yan, a student in Class 9, always asks Li Yuan to help solder modules.

"Sister, the module is welded, please see if it works."

"I can rest assured that you can do this. Here is the circuit diagram. Please help me test it."

Liu Yan threw two drawings to Li Yuan, lowered her head and started improving and optimizing the new module.

In fact, Li Yuan knew that this was the logic module of a universal flip-flop without drawings.

It consists of 12 germanium diodes, 4 electron tubes, and some resistors and capacitors.

He has done no less than 20 of these.

According to the truth table, connect power or ground to the input and test the output voltage with a mechanical voltmeter.

Greater than 4.5V represents logic 1, less than 0.7V represents logic 0.

Ten minutes later, Li Yuan found Liu Yan with the test records.

"Sister, this is the test record. The module performance meets the design requirements."

Liu Yan just hugged her, lowered her head and said, "Make 20 more for me."

"Okay", Li Yuan accepted happily.

Liu Yan is the first person who has been defeated in the past half month. No one else is willing to let him do anything but do odd jobs.

The most I can do is help solder modules.

Tasks such as testing are all handed over to junior students in the lower grades.

Today it can be said that we achieved a breakthrough of 0.

Another half month passed, and Li Yuan had already recruited 5 people, all of whom participated in their testing work.

The best performer was Liu Yan, and some not-so-difficult principle changes were also handed over to Li Yuan.

Starting in June 1961, Kyoto began to stop supplying pork to residents.

The supply of eggs stopped long ago last year.

Teachers and students across the school have begun to face the most difficult year.

After nearly half a year of study, Li Yuan finally touched all the modules.

Although Li Yuan had a prototype before entering the laboratory, more than half a year has passed and the joint debugging of the whole machine has not been completed.

The reasons are as follows:

1. The electronic tube is of poor quality and easily damaged;

2. Everyone is in the exploratory stage of computer principles and manufacturing.

3. The device is different from the one used by Big Brother, so the circuit needs to be redesigned and the parameters re-modified.

In the past six months, Li Yuan has not only understood the structure and working principles of all modules.

At the same time, more than 70% of the circuit modules are welded and replaced by Li Yuan himself.

Although not formally appointed, Li Yuan was assigned the role of computer maintenance engineer by default.

Li Yuan's diligence and hard-working spirit impressed everyone, and they were all willing to ask Li Yuan for help.

Of course, not everyone is so selfless. The reason why they are willing to ask Li Yuan for help is that the modules Li Yuan helps to modify or weld are the most reliable.

Less than half a year later, a very strange phenomenon occurred in the laboratory.

There are nearly 20 groups, and they only know the principles of the logic module they are responsible for.

However, Li Yuan knows all the module functions and performance indicators.

Therefore, only Li Yuan has control over all the logic modules of the six cabinets in the entire laboratory.

He is the only one who is familiar with the system framework and the smallest unit, as well as wiring methods and interface types.

This is the result of his half-year work, from a layman who knew nothing about primitive computers to a master who knows everything now.

His performance has fallen into the eyes of Director Jin, and he has begun to consider coordinating Li Yuan's transfer.

Such students who are studious, smart, and able to put their heads down and work are exactly what the computer science department needs.

By the way, half a month after the semester started, the laboratory of the Department of Agricultural Machinery was reactivated, and the person who took over the laboratory was an old professor.

He is a veteran engineering student who looks down on liberal arts students the most, feeling that only engineering students can create material wealth for the world.

Even if he is a science student, he does not pretend to be a good person, and his treatment is only slightly better than that of liberal arts students.

As Li Yuan from the Department of Motivation, the old professor thought that he was too unstable, wandering around, and seriously neglecting his job.

Therefore, Li Yuan, who has excellent hands-on ability, was excluded from the laboratory by the old professor.

Li Yuan also learned that the laboratory has not carried out new research, but is constantly optimizing the H480, hoping to increase its output power.

When Li Yuan learned about their plan, he sighed secretly. The only thing he felt was that the old professor couldn't move the diesel engine.

In the following days, Li Yuan would attend classes and do experiments during the day, and optimize the design of 911 in his mind at night.

In the past six months, Li Yuan has read all the relevant books purchased by the laboratory.

The understanding of computers becomes deeper and deeper.

When he was in school in later generations, although Li Yuan studied theoretical physics, his understanding of computers was unmatched by current people.

Combining the current primitive computer principles, he slowly figured out a relatively reasonable architecture.

Now he is slowly simulating it in his mind.

Even with his current mental power, he is unable to simulate the entire machine.

The computer model can only be divided into five major units and simulated separately.

And if you persist for no more than ten minutes at a time, your thoughts will be exhausted.

Another half year has passed, and Li Yuan is already a sophomore.

In the Department of Power Machinery, he is just a sophomore student with excellent academic performance.

But in the computer department, he is already a proven expert.

The reason is very simple, through nearly half a year of simulation.

Li Yuan is ready to complete the simulation of the entire machine. Through continuous optimization, he has found all the shortcomings of the current 911 computer.

and gave a solution.

When he took the revised drawings and asked Director Jin to explain for an hour, Director Jin's office was filled with the main participating teachers.

At this time, Li Yuan changed his past humility and started his speech with a calm and confident expression.

They are all technicians who are almost going crazy after being tortured by 911 for many years. Many things will be revealed at a glance.

Even the teacher who was most dissatisfied with Li Yuan had to listen carefully and lower his head to record at this time.