Chapter 173 Kanji Environment and Cats (3k)

In the morning, Gao Zhendong came to the operation office with a tape.

Ever since he saw Mr. He and his colleagues working hard to copy his manuscript at the Grassland Tractor Factory, he realized a problem: the time for a certain work should be brought forward and there was something wrong with the previous plan.

That is, the Chinese character editing environment, the Chinese character operating system, or even just the priority of the operating system, are not as good as this.

With this thing, the promotion of computers has another pillar: office use.

Although it is hard to find a single unit that is willing to use DJS-59 for office work, this is a trend. One of the biggest advantages of electronic data - its ease of copying - has not yet been fully demonstrated.

For people nowadays, even if it is a text editing software without any formatting, as long as the first line can be indented two spaces with spaces, it can basically be used.

Fortunately, he had already implemented all the drivers for a vi-like editor and display. Based on these two things, Chinese character editing and display were realized very quickly.

It took him one day to complete the editing and display functions of Chinese characters. The only problem was the font library and input method.

He made a 16*16 dot matrix font library of four Chinese characters: one, two, three, and already.

He chose Pinyin as the input method, which is the simplest Chinese character input method that does not require any thinking. However, he only made four correspondences between input codes and characters, which are still one, two, and three.

Needless to say, one, two, three are the simplest Chinese characters, which save trouble and are sufficient for debugging. The "已" is prepared for the homophone selection function of the input method.

The workload is not small, including 16*16 dot matrix fonts of thousands of commonly used Chinese characters, the correspondence between input codes and characters, and the 16*8 dot matrix fonts of all English and punctuation marks that need to be redone to ensure display consistency.

This was a physically demanding job, so he made a decisive decision to recruit someone from the computing office.

With the tape, he found Chief Engineer Chi from the Operation Institute. Chief Engineer Chi was very happy to see Gao Zhendong coming with another tape, as it seemed that there was new information.

They gathered several key members and surrounded Gao Zhendong.

With the rustling sound of the tape, Gao Zhendong opened the vi editor. The people in the computing institute looked at him, a little confused. What was new about this thing?
But as Gao Zhendong typed "yi" on the keyboard, a line of alternative words "1.一2.已" popped up at the bottom of the screen, and everyone's eyes widened.

Gao Zhendong pressed the "1" key on the keyboard, and the word "one" flashed on the screen.

Everyone started to move, as they had wanted this thing for a long time.

Chief Engineer Chi stood behind Gao Zhendong and patted him on the shoulder: "Director Gao, you have created a Chinese character editing environment! That's great! From now on, our characters will also be in the computer!"

"In the future, I can use computers to write documents without having to worry about typos or wasting ink."

"Don't you think it's a bigger waste to use a computer to write documents?"

"Great! From now on, comments in C language programs can be written in Chinese characters, instead of writing a bunch of pinyin that you have to guess by connecting them together like before."

"You know what, using tapes to store files is exciting just thinking about it."

"If you think about it, it's really convenient to modify files on a computer."

Due to the existence of polyphones, writing annotations in Chinese pinyin requires you to rely on guessing after a long time, so the pinyin scripts of many countries actually have many problems.

For example, in a certain country, because "waterproof bolt" and "water drain bolt" have the same pinyin, the wrong bolt was used and the foundation was soaked.

Gao Zhendong then typed in the words "two", "three", and "already", then smiled and said, "That's all."

Chief Engineer Chi: “No more?”

Gao Zhendong smiled and said, "Yes, it took me only one day to write this. I was alone and didn't have time to make a font library and input correspondence table, so I just made these few characters for debugging."

Everyone laughed. This is definitely not something that one person can do in a short time.

Then he suddenly realized, "One day? Director Gao, it only took you one day to make this thing?"

Gao Zhendong nodded: "Yes, that's right. With the existing editor and display graphics driver as the basis, plus C language programming is more efficient than assembly language, this thing is also quite simple."

Although the editor is implemented in assembly language, the advantage of C language is that it can be directly embedded in assembly language programs and can also be compiled and run.

Chief Engineer Chi didn't know what to say. Although he knew that what he said was correct, he was still surprised that this thing could be made in one day.

Gao Zhendong said: "Next, the creation of the Chinese character library and the compilation of the input correspondence table will be handed over to you. I really don't have time."

Chief Engineer Chi patted his chest excitedly and said, "Director Gao, don't worry, leave this matter to us! Unfortunately, computers are a bit expensive nowadays. Only ordinary people can use this to edit files, haha."

Gao Zhendong smiled and said, "Maybe in a few years, it will soon become popular." After instructing Chief Engineer Chi to make the Chinese character library and input correspondence table as soon as possible and return a copy to him, Gao Zhendong left the computing center.

Chief Engineer Chi immediately called the leader of the 12th Ministry of Machine Building.

"Leader, good news."

The leader of the 12th Ministry of Machinery smiled and said, "What good news? You are so excited."

"Director Gao Zhendong of the Third Steel Rolling Plant has created a Chinese character editing environment. From now on, we can edit and process files on computers."

The leader of the 12th Ministry of Machine Building answered the phone and suddenly stood up from his chair.

"Good news, this is really good news."

"Yes, boss. Editing and processing files on a computer is easy to save, flexible to modify, and easy to copy. It is also easier to encrypt than ordinary files, making it more convenient to transfer data between units."

What Chief Engineer Chi had not expected was that once the "computer-to-computer communication" technology suggested by Gao Zhendong produced results, it would bring about even greater changes.

He then introduced the current status of the Chinese character editing environment to the leaders of the 12th Ministry of Machine Building, who were very happy to hear: "This matter is of great significance. When you have completed the Chinese character font library and input method mentioned by Director Gao, please let me know. I will contact the publicity department and ask them to go to your place to take some photos. This matter must be publicized!"

Chief Engineer Chi agreed repeatedly, and the leader of the 12th Ministry of Machinery said with regret: "Why did Director Gao get assigned to the 17th Ministry of Machinery? What a waste of talent! What a waste of talent!"

When Chief Engineer Chi heard this, he thought to himself, I hope the leader of the 17th Ministry of Machine Building doesn't hear you saying this, otherwise he will definitely use Director Gao's other achievements to criticize you.

Gao Zhendong didn't know about this. He was in his office, looking at his new finds in the system store.

This idea came to him on a whim when he saw a mobile WiFi terminal.

Then he got the big tin box in front of him and an instruction manual.

This is a modem used on telephone lines. Gao Zhendong had only heard of it in his previous life, but had never seen it, because at that time, this thing had been eliminated for more than ten years. Except in very special places and situations, no one used it.

Modem is the abbreviation of Modulator and Demodulator. The modulator is responsible for modulating the digital signal sent by the computer into an analog signal that can be transmitted through the telephone line, while the demodulator does the opposite.

The combination of the two can achieve long-distance communication through telephone lines. In fact, this thing does not necessarily need to go through telephone lines. In theory, a pair of wires will do.

Because of the pronunciation of Modem, people in the previous life nicknamed this thing "cat". It was once a standard feature on computers and came in both external and built-in types.

Gao Zhendong almost cried out in excitement.

At this time, the United States had modems, but China still didn't have them. Now, we could build a simple network!

The speed of this thing is not very high. In the past, the maximum speed was basically 56kbps, and the one in Gao Zhendong's hand is 1200bps, which means 1200 bits are transmitted per second. It may not seem high, but for computers of this era, this speed is more than enough.

Gao Zhendong did not say anything and extracted another one from the system. Two! This time he could send and receive at the same time.

However, he was not in a hurry to take it to the computing center, as he still needed to make some preparations.

What’s the point of having the device without drivers and application software?

telnet, ftp!

With these two things, one can transmit messages and the other can transmit files.

Telnet and FTP are two application layer protocols based on TCP/IP protocol. Telnet is also one of the basic protocols for remote login of computers and has many uses.

Thinking of this, Gao Zhendong used his 4 lottery chances without hesitation and found a set of books in the system.

——"Detailed Explanation of TCP/IP Protocol"!
Citigroup guys, your TCP/IP is now ours!

Of course, it is unrealistic to implement the huge TCP/IP protocol family right now. It just cuts out telnet and ftp from it, and even the protocol data packets may not necessarily be carried on TCP or UDP messages.

The specific implementation of TCP/IP will be put aside for a while. I will set up a network first.

After carefully reading the manual of the modem, which is actually just the design materials, it is not that complicated. It uses phase shift keying (PSK) technology for modulation and demodulation. In simple terms, PSK uses different phases of the signal to represent binary "0" or "1".

Of course, there are more than just phase shift keying for modulation and demodulation. There are also many other types such as frequency shift keying (FSK), amplitude shift keying (ASK), and quadrature amplitude modulation (QAM). However, the two machines in Gao Zhendong's hands use PSK.

The components used were basically replaced with domestic components, which made it easy for Gao Zhendong to explain their origins. However, he still had to ask his father-in-law to buy a few sets of components based on the BOM list of this thing to cover up his tracks. As for the circuit boards, he could just let the people in the computing institute make them and send them to him.

(End of this chapter)