After the dinner, when leaving the hotel, Du Chunhua said to Du Qiu: "Little brother, our dad has always wanted to see how you teach people, you can take him to see and understand in the evening, anyway, the classroom of Sanjiang University is big enough, not a bad place." Pen ~ Fun ~ Pavilion www.biquge.info"

Du Cunzhi was quite moved by this proposal, and said with a smile: "Your sister blew you up to the sky, saying that your lectures are very popular, I don't believe it, how can it be so easy to be a teacher, if it's convenient, I'll go over and take a look." ”

"Convenient, of course. ”

Influenced by his grandfather since childhood, Du Qiu has always had the problem of being a good teacher, and his ideal before crossing is to be a leisurely university teacher, and he still maintains this mentality after crossing, and when explaining the basic knowledge that has nothing to do with trade secrets, it is carried out in the form of open classes, not only Snapdragon's internal employees can listen, but also people who are interested in the outside world can also listen, one to brush their own prestige, and the other to advertise for the company.

After he returned from the United States, his popularity further increased, and there were many people who came to listen to the lectures, and the Snapdragon headquarters could not arrange them, so he changed to a multi-functional lecture hall at Sanjiang University, which was fully equipped and had a lot of space, with more than 200 seats, but even so, every class was still full, and sometimes even extra seats.

But my grandfather wanted to listen to his own lectures, even if the position was tight, he had to get one out, so Du Qiu called Jiang Danfeng and asked her to arrange it in advance, and then drove Du Cunzhi to Sanjiang University.

At the end of July, it was the summer vacation, and there were fewer people on the university campus, so it seemed very quiet, but the multi-purpose lecture hall was very lively, because the air conditioning was turned on inside, and no smoking was allowed.

After Du Cunzhi got out of the car, he looked up and saw that in addition to the college students in their early 20s who had just graduated, there were also some middle-aged people who looked relatively old, and their dress and bearing were obviously not like students, so he asked, "Who are those?"

"Some are university teachers, some are PhD students, and some are programmers from other companies. ”

"The university teacher also came to listen to your lecture?" Du Cunzhi was very surprised, stopped and asked, "Are they professors?"

"Most of them are lecturers and associate professors, and there are only one or two professors. Du Qiu pointed to the poster posted at the door of the lecture hall and explained: "What I am talking about belongs to the more popular technologies in the world, and they are here to communicate, not just to listen to lectures. ”

"Akiko, you can really do it, you haven't even finished elementary school, and you can teach university teachers. ”

At this time, several middle-aged people in the shade of a tree not far away saw Du Qiu, so they walked over, led by a man about 40 years old, and asked loudly: "Xiao Du, what are you talking about today?"

"UDP, User Datagram Protocol. ”

"I knew you were going to talk about this, and it was true. The man raised the notepad in his hand and said, "You are talking too fast, many students have not yet understood ICMP, you will jump to UDP, why don't you slow down, summarize the content of the previous days, knowledge can only be improved if it is consolidated, and it is not possible to pull out seedlings to help grow." ”

"Professor Zhang, I'm not a teacher, I'm the boss, and the purpose of lecturing is to make money, not to study. Du Qiu pointed to a few employees who ran towards the lecture hall after seeing him, and said: "Spring breeze and rain, teaching and solving doubts is the job of you teachers, not my job, they have graduated from college, they should have the ability to learn by themselves, if they don't learn well and can't improve, I will deduct their wages until they can improve." ”

This set of rhetoric and Du Cunzhi's three views are in serious conflict, his face is stiff, and he snorted lightly next to him, Du Qiu was a little afraid of his grandfather's preaching, and hurriedly introduced: "This is Professor Zhang of Yuncheng University, this is Teacher Shi of Sanjiang University, this is Dr. Wang of Polytechnic University, and this is Huo Reporter of "Computer News". This is my father......"

Du Cunzhi interrupted Du Qiu's introduction, pulled Huang Dashan to the side, and said in a dialect accent: "I am a friend of Xiaoqiu's father, I passed by Yuncheng to see him, you don't have to worry about me." ”

Du Qiu knew that his grandfather's temperament would never have any thoughts of being ashamed of himself, so he didn't want to disturb his lecture, so he didn't say anything, and chatted with a few people while walking towards the lecture hall.

"In fact, I feel that Xiao Du's lectures are not fast, but there are too many knowledge points, combining theory and implementation, giving people a dizzying feeling, fortunately, every lecture is recorded, if students really want to learn, watch the video a few more times to understand. ”

"Xiao Du, your set of tcp/ip handouts is very wonderful, illustrated and illustrated, and can be used as a university textbook, are you interested in sorting it out and compiling it into a book?"

"Hey, Professor Zhang, the strong dragon doesn't suppress the head snake, how can you come to our school to grab business, tell me, all of Xiao Du's translation works and course handouts are all covered by our Sanjiang University Press, you just wait to pay for it!"

"They are all brother colleges and universities in the same city, so it's not appropriate for you to eat alone like this, right? The books translated by Xiao Du belong to you, and the books written by yourself belong to us, and everyone is very happy. ”

"Professor Zhang, what I said is all translated from foreign countries, and if I don't have anything of my own, don't publish it, so as not to laugh at it. ”

Du Cunzhi followed behind, and when he saw that the two families were vying to help Du Qiu publish the book, he was happy and proud, and he couldn't hide the smile in the corners of his eyes, and said to Huang Dashan: "It seems that Xiaoqiu is a seedling who is a teacher." ”

"For there is a father, there is a son. Huang Dashan looked at the excitement left and right, and complimented with a smile: "It's all because Principal Du laid a good foundation when he was a child." ”

When a few people walked into the lecture hall, Jiang Danfeng happened to come out of it with Big Brother, and as soon as his eyes came into contact with Du Cunzhi, he immediately hung up the phone, raised his head with his chest straight, put his hands together, put on a serious look, and said respectfully: "Mr. Du." ”

It's really weird, why don't you usually see you so honest......

"This is Jiang Danfeng, the administrative manager of our company. Because of Du Chunhua's fanning of the flames, Du Cunzhi already knew Jiang Danfeng's name, Du Qiu introduced it vaguely, and then whispered: "My dad doesn't want people to know his identity, you arrange for him to sit in the back row." ”

Jiang Danfeng snorted, like a restaurant waiter, and stretched out his hand to lead with a smile: "Two of you, please go this way." ”

Du Cunzhi looked at her carefully a few times, then walked along the aisle towards the back, and saw that it was almost full of people, so he asked, "Xiao Jiang, why are there so many people?

"No, less than half of them are from our company, and the rest are students or programmers who come to attend the lectures. Jiang Danfeng found a few vacant seats in the last row and asked Du Cunzhi to sit down, and explained with a smile: "Mr. Du is very good at lecturing, and after listening, it is not only very helpful for work, but also very helpful for writing papers. ”

"Really?" Du Cunzhi saw that Jiang Danfeng was dignified and beautiful, and he was very satisfied, patted the chair next to him, and said with a pleasant face: "Little Jiang, you can also sit." Tell me, what does Xiaoqiu talk about?"

"Mr. Du recently talked about the TCP/IP protocol, which is a technology that connects computers. Jiang Danfeng sat down next to him and boasted a little carelessly: "Actually, I don't understand what TCP/IP is, but I heard the employees say that this is a very powerful technology, and there are no more than 100 people in China who are proficient like Mr. Du, so there are a lot of people who come to listen to the class." ”

When Du Qiu gave a lecture in May, he talked about basic knowledge such as C language or data structures, although the quality of the lectures was very high and very popular with the staff, but there was no peculiarity in the content, so there was not much response from the outside world, and few teachers or professors were interested.

But the TCP/IP protocol is different, because in 1995, not many people knew and were proficient in the TCP/IP protocol, such as Steve Ballmer, the second person in Microsoft, did not hear the term until 1993, and Windows 95 was also criticized for not supporting the TCP/IP protocol, and had to borrow a lot of code from the BSD operating system in subsequent versions.

In 1992, Qingcheng University built the first campus network in China that supported TCP/IP protocol, and Zhang Shuxin founded the website in 1996 when he founded the website of Yinghaiwei space-time, he actually engaged in a set of communication standards that were incompatible with the TCP/IP protocol, resulting in the inaccessibility of the browser, which became one of the main reasons for the decline of Yinghaiwei.

The TCP/IP protocol was not gradually understood and mastered by programmers until the legendary physics Chad Stevens published his magnum opus "A Detailed Explanation of TCP/IP", which consists of three volumes, of which the first and second volumes were published in late 1994 and early 1995 respectively, and the third volume will not be published until 1996, and little is known about it in China.

In fact, the TCP/IP protocol became the Internet standard as early as 1984, but China only opened the Internet in 1995, and there is a lack of implementation and application environment.

You must know that after the returned doctor of Sanjiang University betrayed the leadership of the department, he got Du Qiu's guidance, and published four or five papers on the TCP/IP protocol in international journals within half a year...... (To be continued.) )