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When Zhang Da and the others learned from Lin Hong that he could justifiably not go to class without any problems in the future, their envy could be imagined, and they discussed whether they could get privileges like him Lin Hong, but the final result was very unlikely. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

"Boss, you said you rented a house outside? Where? Zhang Da remembered what Lin Hong said on the phone before.

"Located in the western suburbs of Minxiang, you can go over and play when you have time."

"Western suburbs? That's a bit far! ”

"It's not far away by car."

Lin Hong's concept of distance is completely different from theirs, Lin Hong's distance is measured by the time he drives, and their distance is usually calculated by the time he walks.

Zhang Da originally went over to take a look, but when he heard that he was in the western suburbs, he suddenly lost interest, and it was estimated that it would take two or three hours to go back and forth, and the time was consumed on the road.

At this time, Wu Dong took the opportunity to say: "Boss, I have almost read this basic computer tutorial, and I have a few questions I want to ask you." ”

"Well, you say.

"Why did we have to use binary when we invented the computer, instead of directly using the decimal system, which we are so accustomed to and familiar with?" Wu Dong asked the question he had been asking all along.

Li Qi also echoed when he heard this: "Yes, I haven't figured out this question yet, boss, you tell us in detail." ”

"Third child, why don't you ask me? I know why! Zhang Da interjected, he also has a certain familiarity with the computer, and Wu Dong's introductory knowledge is still taught by him, "This is mainly because the components in the computer can only represent two states, 'on, or' off, and physically together and disconnected, which is the reason for using binary." ”

When Wu Dong and Li Qi heard it, they felt that the second child's words also made some sense, and immediately looked at Lin Hong, wondering if this was really the case.

Lin Hong smiled: "Second brother, your explanation of cause and effect is a bit reversed. It is not that binary was invented because it could only represent two states, but on the contrary, it was after binary proved to be more suitable for making computers that we searched for and invented components that were suitable for binary. ”

When Zhang Da heard this, his old face flushed slightly: "Isn't this about the same." ”

Li Qi gave him a blank look: "It's too much." ”

Lin Hong went on to explain: "In the beginning, the computer was equivalent to a calculator, and its composition was completely mechanical, and at that time there was no concept of software, and the decimal system was used. After all, the decimal system is the base system that we are most familiar with and accustomed to, and the closest to the human way of thinking. At that time, the principle of computers was to use gears to represent different values, and one gear to represent a state, for example, there were a total of ten gears, each representing ten digits, and these ten gears were cascaded together with other devices, and the pinion went one circle, and the big gear would go one square. ”

Hearing Lin Hong say this, Zhang Da was also attracted, and he suddenly said: "Isn't this the principle of a mechanical watch?" It's just that mechanical watches are 60 and only have two grades of gears. ”

Hearing him say this, Wu Dong and Li Qi also understood the principle of the mechanical computer that Lin Hong said.

"Yes, kind of like a mechanical watch. At the beginning, it was a mechanical computer, but later after the development of electronic technology, scientists began to use electronic devices to make computers, but they found that the use of electronic components to represent ten states is a bit too complicated, so some people proposed to use binary as the base system of the computer, because the tube itself can only have two states, and the use of the tube to make a computer is not only simple, but also very fast. ”

"So, because of the structure of the tube, you decided to use binary?" Zhang Da asked.

"It's understandable. In the eyes of mathematicians, there is really no difference between binary and decimal. In addition, the binary itself is simple enough and has many very outstanding features, such as simple representation, which can be expressed by the level of the voltage in simple use, and the concave and convex surface of the disk surface can be used to represent these two states, which is very easy to realize the storage of data. In addition, binary is also very convenient for operation, and arithmetic calculations such as addition, subtraction and multiplication can be directly implemented using circuits, which is much simpler than decimal system. The same is true for logical operations, where the two states correspond exactly to 'true' and 'false',......"

The computer uses binary to represent data, and it is true that it is not decided by a scientist patting his head, but the result of various reasons screening and optimization, so to speak, even if history is repeated again, the final result must be like this, because this is the optimal result, just like natural evolution, it is the inevitable direction.

After Lin Hong's detailed explanation, Zhang Da, Wu Dong and Li Qi had a very deep understanding of binary, and many questions that they couldn't figure out before were also solved.

For example, in other computer contexts, why would you rather use hexadecimal than decimal?

After listening to Lin Hong's explanation, I realized that this is still because the most basic base system is binary, the conversion of hexadecimal and binary is very convenient, and the four-digit binary number corresponds to a hexadecimal.

"There's another problem. I wonder what can be done to master the basics of computers in the shortest possible time. Although I have read this textbook now, I still feel uncertain in my heart, and I feel very vague about a lot of knowledge. I want to improve my computer knowledge as soon as possible, at least to the level of the second child, how can I do it? Wu Dong raised another question of his own.

This question is a bit big, Lin Hong thought about it for a while, and then said to him: "Buy a computer." ”

"Yes, you have to buy a computer." Zhang Dashen agreed, "As a student in the Department of Computer Science, it would be too much to say if you don't buy a computer. Second, fourth, you can buy it together. When the time comes, we can also form a LAN to play games together! ”

Zhang Da had wanted to say this for a long time.

Although they already have two computers in their dormitory, it seems that Lin Hong doesn't seem to have any interest in playing games with him, and after the formal class, the other party can't even see anyone, and he has a computer by himself, which is really a little too lonely.

Li Qi said: "I'll go back and tell my family, it should be fine." ”

"This ......" Wu Dong hesitated a little on his face, "I may not be able to buy it for the time being." Computers are too expensive, and to be honest, I really can't afford them. ”

Wu Dong's family's economic conditions simply cannot afford a computer of several thousand yuan, and it is not easy for him to come to school.

"This is easy to do, I can lend it to you first, and then pay it back to me when you earn it.

Lin Hong knew his difficulties, and money was not a problem for him at all.

However, he did not directly give him a computer, but said to borrow it. He knew that Wu Dong's self-esteem was very strong, and if he gave it to him directly, he would definitely not agree, and it might stimulate his self-esteem, which was still a little fragile for the time being.

Wu Dong was silent for a while.

If he were to borrow a few thousand dollars to buy a computer now, he really couldn't make up his mind.

"Third child, what are you hesitating about?" Seeing this, Zhang Da couldn't help but encourage, "What is this money?" Are you still afraid that you won't be able to pay it back in the future? You have to think about it, we are now students of Mizuki, and after graduation, others rush to ask for it. ”

Lin Hong patted Wu Dong on the shoulder and said, "Don't have a psychological burden. It's an investment, it's an investment in your future, and buying a computer is about learning more things, which may be a lot of money at this stage, but when you look back in a few years, you will see that it is nothing. Everyone thinks differently at a given time. Now you think it's a lot of money because your mind hasn't reached a certain height, you've never made that much money, and when you do, your mind is different. Remember, investing in your future is the best business! ”

After Wu Dong heard Lin Hong's words, his face showed a look of thought.

Seriously, he'd never thought in that way before.

Due to the difficult family conditions since he was a child, as long as it involves money, he subconsciously avoids it, and does not calculate the gains and losses at all, let alone think about the issue of investment and return. Now hearing Lin Hong say this, he suddenly felt very reasonable.

Having said that, who knows what the future holds? If you can't make so much money in the future, what should you use?

Lin Hong saw that he still had obstacles in his heart, and felt that it was necessary to persuade him again, at least to let him change his limited thoughts.

"Third child, you still need to change your concept. If you want to change the future and change your destiny through your own efforts, you must learn to 'take advantage of the situation,' What is Leverage? It is to use the power of others to achieve one's own goals. Newton said that he succeeded because he stood on the shoulders of giants. In the same way, if you want to succeed quickly, you must also make the most of all the resources at your disposal......"

Hearing Lin Hong's words, Zhang Da and Li Qi also became serious and listened carefully.

"Through your own efforts, you were admitted to Mizuki University and became roommates with us, and this is your current resource. We can lend you money without interest, so why not? This money may not have a big impact on us at all, but it can make a difference to you, and it can even save you months or even years.

Let me tell you, if there are such opportunities and platforms in your life or work in the future, don't miss them easily, but you should firmly grasp them, as long as they are not illegal and do not violate your conscience, there is nothing to be embarrassed about. On the other hand, if you develop it, it will only be good for us, and we may be able to borrow your momentum in the future. ”

Lin Hong patted him on the shoulder again and concluded: "'Friend, after getting closer, it becomes' the potential of 'use, even friend',

If you don't borrow it, who will you borrow? "To be continued