Chapter 132 Three Books 250 votes plus more!

When Matthew introduced the hacker to Lin Hong, his voice was low. When he said that Arthur was a hacker before, he also looked very mysterious, which made Lin Hong feel a little strange. However, he didn't ask the question until something happened later that he was a little surprised.

Lin Hong didn't know anything about the Internet at the moment, so Matthew taught him from scratch.

Only then did Lin Hong know that the cables that connect these computers are called network cables, and they are connected together through something called a switch to form a school LAN.

In this way, a kind of data exchange channel is established between these computers, and through specific instructions and software, data can be exchanged with another computer through network cables. For example, to send messages and commands to the other party, Arthur used to control Lin Hong's computer, which was to exploit a system vulnerability in Prodos and gain control permission. Through that vulnerability, he can set up a special channel, log in to the target computer, and send instructions and information as if he were operating his own computer.

In addition, Lin Hong also came into contact with the concept of "IP address", each networked computer is assigned an IP address, this IP address is equivalent to the house number of the computer, through which the corresponding computer can be found, so as to send data to it.

Arthur showed Lin Hong on the spot how to find a computer on the LAN that was turned on and send a message directly to the target computer.

After Lin Hong saw it, he immediately simulated the whole process of how the data moved in the hardware in his mind.

He asked Arthur one by one the questions he was thinking, and in the end, the other party was a little overwhelmed, because the questions he asked were too low, and Arthur himself had not yet touched that level.

In the end, Arthur had to tell Lin Hong that these things were too cumbersome, and he didn't have time to take care of some details, and when he returned, he would go to his father's study and get a book on network protocols to show him.

Arthur's father was a professor in the computer science department at the Massachusetts Institute of Technology, and the shelves in his study were full of computer-related books, and Arthur began to use those books as toys at a very young age.

This is undoubtedly great news for Lin Hong.

He only knew that Orlando was a university teacher, but he didn't expect that he happened to be a professor in the computer science department, no wonder Arthur's computer technology is so powerful, it turns out that there is a family tradition.

Finally, Lin Hong asked about email.

"So, how do I send emails? Can I use this computer directly?".

Arthur shook his head: "This is a local area network, except for research purposes, it is rare to send emails in the local area network." If you want to send an email to Washington or abroad, you have to dial up the Internet and then use email software to send it. ”

Under Lin Hong's questioning, Arthur then explained to him the concept of the WAN, that is, the Internet. At this time, Matthew, who is knowledgeable in theory, also participated, and he explained to Lin Hong in detail the development history of the entire network.

The Internet began in 1969, and the United States connected the main computers of many universities across the country on the basis of ARPA, so as to realize information sharing and provide communication functions. Later, major institutions in the United States gradually began to join this network, and by 1983, the U.S. Department of Defense divided the ARPA network into military networks and civilian networks, and then more and more companies joined, and the network gradually expanded, and finally European governments began to sign agreements and joined the network, eventually forming today's Internet.

At the same time, Arthur also told Lin Hong that his home was already connected to the Internet, and he would show it to him when he went back.

Lin Hong's harvest this afternoon is not small, now he finally has a clearer understanding of computer networks, although he has not figured out many details, but he is not as blind as before.

In essence, the network is also a kind of sending and receiving data signals, and Lin Hong compares radio signals and feels that the two are similar. However, compared to radio signals, computer network data transmission is more complex and more controllable.

The world's radio stations are located all over the world, and it can be said that they form a huge network, but this network is extremely loose and uncontrollable. The transmission efficiency of the signal is very low, and it is only possible to establish communication when both parties are online at the same time, which is a kind of instant connection.

Computer networks, on the other hand, can receive information when people are not nearby, as long as the computer is turned on, and then process it later. On top of that, software can run in the computer, and that's what fascinates me the most.

Software is like the soul of a computer, and a computer without software is like a tape recorder without tapes, just a pile of scrap metal. It is precisely because of the existence of software that computers have infinite charm, so that human wisdom can be derived and expanded to another world.

However, if it is only a one-sided computer, its functions are limited, and its impact on society is also limited. However, if you can connect many computers to form a network, it is equivalent to connecting the "wisdom" of many people, and thus can generate immeasurable power.

This is probably an important reason why the U.S. government initially wanted to connect computers at universities and research institutes across the country.

Faintly, Lin Hong felt that the computer network would become a powerful force to promote social development in the future.

They stayed in the computer room until four o'clock in the afternoon and then came out of it.

Matthew has been playing the game, playing and commenting on the game, saying that it is not good here, it is not scientific there, and if he designed it himself, how it should be. Lin Hong can see that he is a hardcore gamer, because of many of his suggestions, Lin Hong feels more reasonable.

From beginning to end, Arthur was more dedicated, answering all the questions raised by Lin Hong, and if it involves the historical origins, he asked Matthew to come out, which is Matthew's strength. Others, which he could not answer, promised to help find relevant materials and books when he returned.

The homestay was not far from the Latin School, and Lin Hong and Arthur walked home.

In the United States, the principle of proximity to school is implemented, and where you live, you must go to a local school, and it is not possible to go to school across regions. If you feel that the local school is not good and want to come to the Latin school, then please relocate and move to the school district of the Latin school to live, otherwise the school will not approve your transfer.

As soon as he arrived at the door, the family's big dog, *ingo, greeted him warmly, and Arthur immediately squatted down and made out with him for a while. Originally, Arthur also wanted to introduce Lin Hong to Bingo, but found that Bingo seemed to be very afraid of Lin Hong, although he no longer escaped with his tail between his legs like he did when he first saw him, but he was reluctant to approach him.

For this situation (the latest chapter of seeking demons), Lin Hong also felt helpless. He now seems to have become a pet nemesis, any pet he meets on the road, seeing him is like seeing a jackal, tiger and leopard, they all run away, and a few of them are led by their owners to walk the street, and even almost trip their owners to the ground.

"Fortunately, Ah Huang still wants to be like before, and he is not afraid of me." Lin Hong thought to himself.

After going back this time, he reunited with Ah Huang, and it could be seen that he was very happy, but unfortunately he stayed too short to bring him out. Later, Lin Hong fostered Ah Huang in the master's house, saving him from always having nothing to eat and being hungry.

In the courtyard, several staff members in green uniforms are helping to level the grass and replant it. Vena, on the other hand, watched from the sidelines, giving suggestions for improvement from time to time.

"Children, you are finally willing to go home." Vena saw them from afar and shouted.

"We went to the school computer room after school for a few hours." Lin Hong paused and explained.

Arthur, on the other hand, walked directly into his room with his schoolbag on his back.

Vina smiled and said, "You don't have to report your whereabouts to me, that's your freedom." ”

By this time, the work of the lawn restoration staff had been completed, and one of them came over with a protocol for Vina to accept. Vina signed her name and thanked her.

Lin Hong saw that the lawn in front of the door had been completely restored, and he couldn't see that it had been destroyed by someone at all.

Soon after Lin Hong returned to his room, Arthur knocked on his door.

The door was not closed, but Arthur did not come in directly, and only after getting Lin Hong's permission did he come in with a few tomes.

"These three books contain all the answers to your questions today, I have folded up the important points, you can read it yourself, if there is something you don't understand, you can always ask me."

Lin Hong took the three books in his hand and first looked at the covers one by one.

The cover background of the first book is black, and on the black cover, there are some green text dotted with them, all of which are names of people such as Bob Albright, Bill Gates, Steve Jobs, Wozniak......

On the cover, a huge white word was printed in his eyes - "Hacker"!

Underneath this word, there is a line of small print: Hero of the Computer**.

Lin Hong couldn't help but turn the page immediately, quickly browsed the front and table of contents sections, and a rather shocking feeling rose from the bottom of his heart.

This turned out to be a book dedicated to hackers, spanning from the fifties to the eighties, tracing the tradition and history of hackers, and describing the lives and stories of many famous hackers

There is no doubt that this "Hacker: Hero of Computers" is exactly the book he wants to read

The second and third manuals are both technical manuals, "Introduction to Protocols" and "Computer Architecture: Principles and Examples", respectively, all in English.

"Thank you" Lin Hong thanked solemnly, completely from the heart.

"Don't forget our deal." With such a sentence left, Arthur walked out.

Chapter 132 Three Books [250 votes plus more!] 】

Chapter 132 Three Books [250 votes plus more!] , go to (Holy King txt download) to read the novel