When writing the underlying micro kernel, it is the least not allowed to interfere with the outside world, nor can it go to and from get off work normally like ordinary employees. It depends on the boss Wang Yong, the boss, to deliver the meals personally.

If you are tired, take a break. At this time, the loose office environment designed by Liu Meijuan shows its superiority.

The engineers fell onto the recliner and fell asleep immediately while shaking.

These young engineers are often at work and they need to maintain the consistent coherence of logical thinking.

During the day, the company has a canteen. Wang Yong just runs his legs and is more a good waiter, making strong tea and coffee for these technicians who are dedicated to their work, so as to ensure that they keep getting goods. When they see who finish drinking, they have to send them quickly, because their thoughts are highly concentrated on programming and they can't even find out if the tea cup is empty.

In the evening, Tang Meili and her daughter got off work, and Wang Yong had to serve as a chef to cook midnight snacks for the project team.

Fried rice noodles, three fresh noodles, stewed beef brisket, citi ginseng pigeon..., various flavors and patterns come in turn. At this time, Wang Yong has mastered his skills since childhood and has shown his skills.

Yes, not only software engineers, but also Wang Yong and his wife are devoted to the project team.

I never returned to the dormitory that is so close to me, and everyone lived and ate and lived in the office building.

There is a bathroom in the office building. Wang Yong asked every engineer to take a bath once a day so that he could maintain his energy and not lose his body in three days.

Their laundry changes were cleaned by four cleaning aunts from the company, and Wang Yong added an extra ten yuan to each of them for an extra day.

On the tenth day, the first layer of hardware or simulation layer microkernel program was finally written, but the overcoming difficulties had just been completed, and all the personnel of the project team had to continue to work hard.

The second layer is harder than the first layer because it is twice as huge and can only be written in machine language.

The second layer is also a hardware layer, which is the expansion of the first layer, and the workload has almost doubled.

As expected, it took twenty days to finally finish the compilation.

The workload of the third floor is twice that of the second floor, which is equal to four times the workload of the first floor.

This layer is the most difficult layer of the entire operating system, because when it reaches the fourth layer, it uses assembly language, and the efficiency has been greatly improved by ten times. Although the workload is greater, the actual time will be less.

Moreover, because of the use of more intuitive assembly language, the chance of errors is reduced by more than ten times.

The pressure on software engineers has dropped sharply, and by that time, it can be changed to a normal working and working schedule.

The difficulty of writing the third layer is one aspect. The most important thing is that this layer is the core of the entire operating system, and it is also called the function setting and interpretation layer.

Strictly speaking, the first and second layers are just connection layers between the operating system and computer hardware, and the third layer is considered the core of the operating system.

Intuitively speaking, it is equivalent to the instruction set of CPU and is a setting standard for system interface, software interface standards, and software logic instructions.

At this level, we can no longer focus on writing. We spend more time at meetings and discussions. At this time, Liu Meijuan's importance is reflected again. She wants to use her advanced insights and thinking to influence and inspire Zhang Zhidong and all the people in the project team.

At the beginning of the meeting, Liu Meijuan tapped the desk with her hand, and started talking when everyone's eyes were gathered on her.

"The third layer is the function setting and explanation of the software interface. I don't know how to build and write it.

But I want to tell you about my understanding and imagination of some functions of the operating system.

Let me start with some commonly used functional software that comes with the system.

It is similar to the micro-hard Windows95, with perpetual calendar, calculator, storage management, notepad, download management, email, recycling bucket, etc...."

"etc"

Zhang Zhidong suddenly interrupted Liu Meijuan's speech.

"Director Liu, other functional software are nothing, why should email be set as functional software?

It should be an application software, and it is an application software based on Internet technology. We are not connected to the Internet at present, so there seems to be no need to set it up."

Liu Meijuan smiled and explained his doubts in a gentle voice.

"First of all, we should realize that email is a basic software that is necessary for every user.

Furthermore, don’t you know that this is a must-have software that the company communicates with users?

If any important notifications are available to the company, you can send them to each user through email.

Users can also give us suggestions and respond to questions via email.

This software is also needed for the mutual connection between users, because email information will be stored for a long time. After sending the message, his friends will receive it for a few days.

This is different from the real-time contact of the phone, and it is a very practical function.

As for the problem of not being connected to the Internet, a LAN is also a kind of network, and communication is also required between people and between users and companies.

By the way, I would like to remind you that we need to add a letter reminder, which is to add a red circle to the upper right corner of the email APP, indicating the number of emails.

Users can directly read the email content by clicking this pop-up window.”

At this time, Wu Hongjun immediately stood up and questioned: "Director Liu, doesn't this reveal the user's information secret? And he summarized the emails into the system's own functional software. In fact, anyone can click on it, which also exposes the user's personal privacy information."

When Liu Meijuan heard this, she was embarrassed. She explained it based on the software that comes with her mobile phone system, but the mobile phone is dedicated to everyone, and the computer in the computer bar is public, so it is indeed not possible to use the software that comes with the system.

"Cough cough" Liu Meijuan coughed twice to relieve her embarrassment before she began to answer.

"You're right, this is indeed a serious mistake, but every one of us needs this basic communication software.

There are also future cloud and some software involving personal privacy that users need. Do users download and log out after using it? Is this extremely inconvenient?"

"This is easy to deal with." At this time, Zhang Zhidong interrupted again with confidence.

"It is indeed inappropriate to put the emails that Director Liu just mentioned in the system's own software, but they can be put into the user's cloud system interface."

"Cloud system interface?" Liu Meijuan was puzzled.

"Yes, I have thought about how the cloud you are talking about before, Director Liu, how should you realize it?

The computer bar is not used by one person, so you cannot download all the software like a personal computer. Otherwise, it is really just like Director Liu said, after using it, users have to log out, otherwise their privacy will be exposed.

Of course, we can also add a password lock to every important software.

But this is also very troublesome. Others will cancel the software you downloaded, because if everyone does this, the system interface will not be able to install so many software.

I remembered that the computers in the computer bar actually have no hard drive, and we replaced them with cloud disks. These functional software are actually stored in the cloud. So, why don’t we just create a cloud interface that is exclusive to every user?”

Liu Meijuan understood what Zhang Zhidong meant. She thought it was very creative, which was something that later generations did not have. Because of this, she didn't know how to solve it, so she asked again: "Then how do you achieve it?"
Chapter completed!