Chapter 222 The First Network Message
After finally waiting for the progress bar to run out, Gao Zhendong opened the transferred file and compared it character by character with the original file.
He doesn’t have time to do hash verification such as MD5. At the same time, the calculation amount of MD5 is a bit excessive for today’s computers, and the collision rate of verification such as CRC is relatively high, so In order to completely confirm the accuracy of the first transmission, Gao Zhendong simply stared! There’s not a lot of data anyway.
After taking a while, Gao Zhendong breathed a sigh of relief and got it right!
It’s time to take the first step. Lao Maozi’s network cannot be built. Maybe we will be different here. At least, maybe it will be faster for scientific research, defense and government affairs?
The next day, Gao Zhendong went to work and called Chief Engineer Chi of the computing institute.
"Mr. Chi, are you free? If you are free, please cooperate with me in conducting an experiment."
As soon as Mr. Chi heard what he said, he immediately became excited, even Gao Zhendong An experiment that requires cooperation is definitely not simple.
"Okay, okay, how do we need to cooperate? Director Gao, please tell me."
Gao Zhendong made a few requests to Chief Engineer Chi on the phone, and then handed a few things to I packed it in my bag and rushed to the computing office.
As soon as Chief Engineer Chi hung up the phone, he called the staff: "Find two offices, both of which have telephones, and then deploy a DJS-59 in each, and then find two walkie-talkies."
Thanks to DJS. -59 is not big, otherwise the requirement of deploying one DJS-59 each would be a bit troublesome. If it were replaced by the Laomaozi M-3, one might not be able to deploy one in a week.
The former is easy to handle, but the latter is a bit troublesome.
Finally, they found two walkie-talkies from the Communications Institute next door. That’s what they did. There were walkie-talkies for research and some for maintaining experimental equipment.
By the way, the Computing Institute asked the Communications Institute to report to the traffic management department. There were not many radio stations these days, and we were in the capital. Electromagnetic waves of any frequency that were not within the scope of the registration would cause trouble.
Regarding the requirements of the computing center, the Communications Institute was very responsive and immediately provided equipment support. By the way, they also supported two walkie-talkie operators. The walkie-talkies of this year are more troublesome to use than those in the future. It will be easier to work if people follow you.
The people in the computing office were a little curious about this battle. When Chief Engineer Chi said that it was Director Gao's request, everyone was relieved. He had something to do, so it's okay.
No one asked who Director Gao was. In the computing center, when it came to Director Gao, there was no one else except that one.
Not long after, everyone was waiting for Gao Zhendong. As soon as Gao Zhendong arrived, Chief Engineer Chi greeted him.
"Director Gao, what good things do you have?"
Gao Zhendong smiled mysteriously: "Good things, good things that can change the world."
This brought Chief Engineer Chi's curiosity to its peak, and then he watched Gao Zhendong start to prepare.
One of the two offices found by the Computing Office was the original computer room. The management room there originally had a telephone. It was easy to lead the telephone line to a DJS-59.
In another place, Chief Engineer Chi simply took out his office and deployed a DJS-59 in his office.
Although he is the chief engineer of the computing institute, he is not as convenient as Gao Zhendong, who can deploy DJS-59 to his office on a daily basis. Except for those in the desert or some special scientific researchers, others It's not possible for the time being.
Gao Zhendong was in the computer room and connected the modem to the phone line.
Chief Engineer Chi asked curiously: "Director Gao, what is this?"
Gao Zhendong smiled: "This is a modem, which allows computers to communicate directly through telephone lines. Equipment for data communication.”
This sentence made Mr. Chi excited, communication between computers!
When the comrades in the other computing centers around him heard this, they also made a stir and began to whisper among themselves.
After answering everyone's questions, Gao Zhendong connected the communication port of the DJS-59 to the Modem, connected the tape drive, and ran the Modem driver and telnet program.
This is a telnet server-side daemon, but it has been specialized by Gao Zhendong to directly display the messages sent by the telnet client, and can also send messages to the specified connected telnet client.
Then he asked Director Li, who came after hearing the news, to wait next to the computer in the computer room, and he and Chief Engineer Chi went to Chief Engineer Chi's office.
He came to Chief Engineer Chi's office and made the same preparations as he did there. Then he picked up the phone and started asking for the phone number in the computer room.
The Computing Institute is not a large unit, so it does not have its own switchboard. Even if the distance is close, the two telephones within the unit must be transferred through the manual transfer station of the Post and Telecommunications Bureau before they can be connected.
This is also the reason why Gao Zhendong wants to do experiments here. In addition to showing the Modem and communication programs to the people in the computing center, the test conditions here are very similar to the normal remote connection communication through telephone lines.
It is also the existence of the manual switching station that makes the modem dialing control instructions useless. Gao Zhendong has to manually communicate with the call first, and then perform the handshake operation between the modems through the acoustic coupler. .
In the computer room, the phone rang. Director Li answered the phone according to Gao Zhendong's request. Gao Zhendong's voice came from the phone: "Director Li, please put the phone next to the modem. . ”
Director Li placed the microphone next to the modem as requested by Gao Zhendong.
Here, Gao Zhendong started the connection command of the Modem driver.
Then everyone on both sides heard a rhythmic "sizzling" sound, which was the Modem shaking hands.
Not long after, Chief Engineer Chi saw a line of words pop up on the monitor here.
"Modem-1 has been connected." Modem-1 is the name of the opposite modem. Manager Chi was very excited: "Director Gao, is it connected now?"
Gao Zhendong smiled: "Just ask Director Li to confirm."
Mr. Chi reached out to grab the phone, but Gao Zhendong grabbed his hand: " Mr. Chi, the walkie-talkie, the walkie-talkie, the phone line is occupied."
Mr. Chi patted his head. , laughing secretly that he was too excited.
He asked the walkie-talkie operator of the Communications Institute to call the other side, and Director Li's voice came from inside.
Before Chief Engineer Chi could ask questions, Director Li shouted excitedly on the walkie-talkie: "It's cleared, Lao Chi, Director Gao, it's cleared!!"
Manager Chi quickly asked: "Lao Li, what are you showing?"
Director Li looked at the monitor and read: "Modem-2 is connected!"
Chief Engineer Chi slapped the table: "It really works, Director Gao!"
Gao Zhendong smiled and said: "It's not over yet, Director Li, just watch over there."
Then with everyone's expectations on both sides, Gao Zhendong started the telnet program.
After entering the username and password, a series of prompts appeared on the monitor.
"
This is the prompt that the client has logged in to the telnet server ZJ-2.
Gao Zhendong asked Director Li what he saw through the walkie-talkie. Director Li read out the prompt message on the telnet server: "Telnet client ZJ-1 has logged in."
Gao Zhendong entered a send command after the prompt and sent a Chinese character message.
He hit Enter. Mr. Chi knew what send meant. After thinking about it for a moment, he was overjoyed. Before Gao Zhendong could prompt him, he picked up the walkie-talkie and shouted to Li Suo on the other side. long.
"Lao Li Lao Li, is there Chinese character information on your monitor?"
"Yes, yes, yes"
Before Director Li could say anything, Mr. Chi He rushed to answer: "Hahaha, it must be"
"Everything is connected!"
On both ends of the walkie-talkie, the two people said this sentence in unison.
Both of them knew what Gao Zhendong was doing. He had already achieved direct data communication between two computers.
Although it seems like a simple short message now, this means that more things can be sent in the future!
This is the first time that Chinese characters have appeared on the Internet. This Chinese character message transmits four concise and comprehensive words: Internet of Everything.
Many years later, Chief Engineer Chi, a pioneer in domestic information technology, said in an interview: "That was the first time we sent an online message with Chinese characters. At that time, we were completely unaware that Comrade Gao Zhendong sent it. These four simple words represent his lofty goals. To this day, we have not been able to fully achieve these four words.”
Now, the people on both ends of the walkie-talkie are immersed in it. In the midst of the joy, the walkie-talkie heard the applause of the comrades over there.
Gao Zhendong exited the telnet client and started the ftp server. With the current speed of the machine and the lack of a multi-tasking operating system, it was a bit too much to think of both running together.
Then he called Chief Engineer Chi: "Let's go over and take a look."
Chief Engineer Chi put down the walkie-talkie microphone: "Let's go!"
Gao Zhendong and Chi Before the chief engineer even entered the computer room, he could already hear the excited noise inside.
When he walked into the room, everyone looked at him and spontaneously applauded enthusiastically again, with excited smiles on their faces.
Director Li greeted Gao Zhendong amidst applause: "Director Gao, congratulations to you, you have opened up a new world!"
Gao Zhendong smiled: "Now that we have computers, we must let them Only with more possibilities, the power of a computer is limited. Combining network and communication is the future of information technology.”
This sentence made Director Li and Chief Engineer Chi suddenly. They fell into thinking, and then recalled the four words "Internet of Everything" uttered by Gao Zhendong. They seemed to have thought of something, but they couldn't think of anything for a while.
When everyone came out of the excitement, someone thought of a question.
“This also requires sending messages through the phone line. What is the difference between making a direct phone call?”
Gao Zhendong didn't laugh at him for being short-sighted and narrow-minded. He had just come into contact with this thing and could figure out every aspect of it at once. He didn't see that Director Li and Chief Engineer Chi were still confused.
He just laughed: "It can do a lot of things, such as what I want to do now."
(End of this chapter)
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