One hundred and eighty-eight

Anyway, Chang Chang was just immersed in the beautiful 'women' at the time, and he didn't pay attention to what these guys were doing, and by the time he came to his senses, Ferrari had already taken a thorough bath.

For a long time, he cried without tears, but he was limited to his promises, he could only knock out his teeth and swallow blood, and he generously expressed that he would not pursue it. However, I hated the guy who proposed it for a long time, and I initially concluded that the one who laughed the most was the one who laughed the most.

"Mr. Fisnel, you have a share of the alpha's credit, this is indelible, and I have decided to reward you greatly!" Chang Chang held his glass and motioned for everyone to be quiet.

When Fisnel heard that there was a reward, his eyes turned green: "I really like you so much, can you let me choose the type of reward, such as dollars or gold or something." ”

Chang Chang shook his head: "There is a dark beer specially shipped from Germany, and I decided to let you kill a barrel by yourself!"

Fisnair was stunned, but the others were coaxing, they originally saw that Chang had specially named this obscene hacker to reward him, and they were unhappy, but now they understand that this is to rectify people, and naturally they are afraid that the world will not be 'chaotic'.

So the poor Stanford No. 1 hacker was stripped naked and fixed by a few strong men, a beautiful 'girl' was in charge of pouring wine, a barrel of beer was not half emptied, Fisnel was already unconscious, and everyone laughed.

The carnival lasted all night, and the grounds of the research institute were in a mess, I don't know what happened to the others, anyway, I was full of yellow soup for a long time, and I don't know how long I slept before I got up.

"It's not dawn yet?" After a long glance out of the window, the headache was cracking, and the mouth was dry like fire, and when I reached out and thought about it, I didn't know what person's body I pressed, and there was a moan.

After a long apologetic look, it was actually Fisnair, and he couldn't help but be angry in his heart: "Aren't you dead yet?"

"It's coming!" Fessnell muttered, trying to leap up quickly, but failed, so he had to sit on the ground, scratching his head with his hands, "I remember losing consciousness in the square, how can I be in the office now, is it a dream?"

Ignoring this 'bastard' ball for a long time, just struggling to get up and find water to drink, Fisnel shouted with a shy face: "Bring me a cup head!"

After shaking to the bathroom for a long time, I picked up the glass and filled it with tap water and dried it for a few big sips, and the feeling of cold water flowing down my throat was so wonderful, as if a life energy was injected into my body, and the whole person's 'spirit' state was instantly improved.

By the way, brush your teeth and wash your face, and only then did she come back with a pot of water for a long time, but she was surprised to find that this hacker comrade was actually holding a commonly known big brother and making porridge on the phone there, his tone was gentle and unreasonable, and his expression was atrophied and wild, and he knew at a glance that the other end of the phone was definitely not a male 'sexual' animal.

Fisnel saw that he had come in with a life-saving thing for a long time, and hurriedly said goodbye, and put away the big brick with great care.

"What the hell are you? Show me. Of course, I know what this is, and the DynaTAC8000X, a mobile phone that has recently become popular among successful people, is claimed to be the first mobile phone by Motorola.

But this thing really can't be regarded as cheap, first of all, it is huge, weighs two pounds, and the talk time is pitiful, and for a long time such a business person two phones will use up all the power, perhaps the function of self-defense is more practical than the function of the phone, after all, bricks are not everywhere.

But it doesn't seem like anyone is willing to smash people with this thing, at least in '85, when it cost $3,995 and could buy a nice car.

I don't need this thing for a long time, in his opinion, this thing is not as convenient as a pager, the analog signal of this year is not very good, the mobile phone is mobile, Lao Mei is not exempt from vulgarity in this period, and the 'spending' is naturally expensive.

It's just that Fessnell has such a thing, and he has been very interested in gossip for a long time.

"Second-hand. Fisnel trembled and watched as he threw the phone around for a long time, "Head, if you give me back this thing, I'll tell you a secret, this is the painstaking research of Stanford's No. 1 hacker, for the sake of the shared hacker 'spirit'." ”

"Turn!" Chang 'handed over' the phone to Fisnair, "If you dare to trick me, you seem to have half a barrel of beer left unfinished yesterday......"

Fisnair carefully put away the phone and explained the principle of the phone, so that he couldn't make a sound for a long time.

It turned out that the U.S. communications technology industry at this time was in the midst of a 'swing', and the fixed-line technology seemed to have developed to its peak, giving rise to the behemoth of AT&T, which was finally dissolved in 84 because of the monopoly.

In the 80s, one of the proudest industries of the Americans was the telephone network system, and it can be said that there is no other region in the world that can compare with the communication network of the United States at that time.

Americans who travel to Europe know how poor the phone service in Europe is, the quality of calls is erratic, and the prices are really expensive. As for Asia, it was a mess except for Japan (which is not bad), and China did not seem to have a nationwide telephone service network at the time.

There is no doubt that the most advanced technologies in the communications industry are produced in the United States, including wireless communications. At that time, in order to fight against the monopoly of AT&T, the Americans tried their best to find a way to start with microwave communication and did not use the Bell network, but fortunately succeeded.

However, this quickly proved to be unfeasible, and there was no single frequency band that could share a channel for every user in an entire urban area. But technology always has a solution, since a large area is not good, then let's engage in a community, divide a city into n districts, the shape of each community is a regular hexagon, connected together like a huge honeycomb pattern, this is the cellular telephone system.

With a cellular telephone system, as long as enough base stations are built, the number of users supported is theoretically unlimited, and the required bandwidth is greatly reduced, such as 450 megahertz in Germany, 900 megahertz in the Nordic countries, and so on.

Due to the reasons of the "exchange" exchange industry, I have been in contact with some experimental "sexual" wireless networks in China for a long time, which is in Shanghai, the number of users is very small, and the frequency is only 150 megahertz.

Regardless of this, whether it is 150 megahertz or 450 megahertz or 900 megahertz, anyway, the analog technology was still used at that time, because it was developed from the telephone, so this first-generation technology used frequency division multiple access technology, and the signal transmitted through the radio 'wave' simulated the ups and downs of people's speech.

Because it is the frequency used to distinguish users and transmission, the number of users that can be supported by the first generation of mobile phones is really small, and one of the biggest "problems" is that the confidentiality "is poor", and it will be stolen.

It seems that Americans are born to like to do this, and Apple founders Woz and Steve Jobs have not learned well before, and once resold the blue box. What is a blue box, simply put, is a device that can emit sounds of different frequencies, telephone dialing usually uses sound signals, blue box can simulate the dialing tone of any phone, and hackers generally use this thing to steal calls.

The principle is similar, Fisnair is now using this technology, but the blue box they made by Watts was still the oldest, and now it only needs a few chips to complete the task.

Fisnair claims that the first hacker at Stanford is not 'messy', he does have some ability, the basic skills of radio and network are extremely solid, after searching for information and analyzing the actual mobile phone, he immediately grasped the principle of this analog system.

His idea is this, because the means of identifying users in analog networks are similar, for example, the network he is using now relies on a string of 10-digit mobile subscriber identification code and local telephone identification code to identify users, and there is a unique serial number in the mobile phone.

This may seem very reliable, but what is fatal is that the wireless interface of the network is not encrypted, and all the data that the user's mobile phone communicates with the 'switching' system is transmitted in a modulated manner on the control channel of each cell.

Fisnair used some of the Institute's equipment, intercepted some user identification codes and electronic serial numbers, and copied these data to mobile phones, so that it was possible to create mobile phones that were exactly the same as the original legitimate users for the 'exchange' system.

"It's basically the process, it's very simple, but it's absolutely practical. Fisnel triumphantly preached to Chang Chang, "Anyway, the people who can afford to use mobile phones are rich people, so they don't care how much money they use." ”

I listened to it for a long time in a cold sweat: "This seems to be illegal, this kind of thing is better to do less, in case the telephone operator strengthens the prevention, it is not decent to be copied by the strip." ”

In fact, I thought to myself for a long time, fortunately I didn't get a mobile phone because I was troublesome, otherwise I would have been stolen and sold by this kid.

Fisnel didn't care: "This system is like a post-'flower' garden to me, I can do whatever I want, and no one can find out." ”

"You cow X!" I have to admire this guy's courage for a long time, anyway, I don't have this heart when I grew up under the red flag, but ...... "Listening to you say this, it seems that you are 'very' proficient in this business, if you are ***, how will you catch these thieves?"

Fisnel thought for a while, and finally shook his head and said: "It's impossible, this is a defect in the network system itself, unless all the equipment is updated now, and then 'spend' a lot of effort to develop monitoring equipment and software, but the cost must rise quickly, after all, analog network technology has its own limitations." ”

"Then you don't need an analog network!" shouted Chang Chang, he stood up and walked back and forth, "The principle of frequency division technology has long been outdated, and it is really incredible that there are still people using this technology to develop mobile phones, you say that what if we use the most popular time division technology to develop a network?"

Fisnel rolled his eyes and said, "How can it be so easy, who will listen to you?" besides, it is impossible to accomplish it without huge financial resources and enough time. ”

"Once it's done, the money is immeasurable!" has already appeared in the eyes of the long man, this thing is a treasure, mastering the technical standard is mastering the destiny.

Fisnair watched the long daydream, so he sat up cross-legged and said, "Anyway, I don't pay attention to me, I'll talk to you today." Listening to you say this, I have a little idea, the telephone line originally transmitted only sound signals, the use of frequency bands is too low, after the computer transmits data signals, this has a variety of data services. The truth here is much the same, except that the transmission medium is different. If you really want to do it, it's better to start from this aspect and use the bag. ”

"Package?" "You mean to send the data out in packets like a computer LAN communication?"

Fisnel didn't want to say more and more quickly: "That's it, the physical network has proven that this is the method of the highest utilization of the frequency band, we can improve it, the specific mode of the network remains the same, it is still cellular, each cell is also supported by a base station, but the 'switching' and wireless network interfaces are digital, and the transmission is digital." Mobile phones have a modulation chip that is responsible for encoding and decoding people's voices, and then everything works digitally, and there is a law to follow this system. ”

"So how to solve the problem of piracy?" After a long time, he suddenly felt that his eyes were much brighter, and this was not the second-generation communication network! In my memory, the analog network did not exist for a long time, and perhaps China once did a big wrong, and moved the network eliminated by others as if it were a treasure, but after two or three years, it was found that no unit had developed the simulation technology, so it 'spent' money and continued to buy, anyway, it was taxpayers' money that was 'spent', and I was not distressed.

"This is a better solution. Fisnel smiled, "The problem of analog methods is as difficult as the sky, it is simply not worth mentioning in the digital network, there are various technologies to solve, the most convenient way is to encrypt the communication signal, as long as this function is added to the codec chip, it is not afraid of people cracking it." Coupled with some other precautionary measures, the possibility of piracy can be completely ignored. ”

"Wouldn't that be able to dominate the entire communications market?" said Chang Chang excitedly.

"Impossible, at least not for now!" Fisnel shattered a long-standing dream, "First of all, this voice modulation chip is currently difficult to build, and even the fastest processor can't handle so much data in real time, so ......"

"DSP!" has long been clear about this, "you can develop a processor that is dedicated to processing signals, and other functions are not required at all, and the integration of multipliers should not be a big problem with RISC architecture." ”

"You're crazier than me!" Fisnair said~~~~~~~~~ "Are you crazy?" Zhang Yi also frowned and said, "You don't care about a lot of things in front of you, and what kind of wireless communication development you want to engage in, this is a field that only those national laboratories have set foot in, you'd better give me a little bit of peace!"

was rushed by Zhang Yi, and suddenly withered for a long time, and said in a low voice: "That's what I said, it's always okay to do some small-scale pre-research, so as not to be caught off guard by then, this is so profitable." ”

Zhang Yi, who was about to go crazy about "letting go of ......", almost destroyed his image, but fortunately shut up in time, "Don't tell me what the profits are so big, don't you have a big basket in this area of communications? Originally, the domestic development was good, but it had to be programmed to 'deliver' the machine, and the "wave" took more than a year, and no one appreciated it, and finally there was a production line, and the mainland gave so many preferential policies and 'made' losses, and now they are all making money for manufacturing, and the more they sell, the more they lose. ”

It's not time to make money yet, so he muttered to himself for a long time, but it seems that this plan obviously can't work, and although Xu Zhixing, the old fox, has no objection, he is still silent.

"Let's put this on hold for now. I didn't want to be entangled in this area for a long time, so I changed the topic, "I also have a proposal, you see if it's okay, now the company is developing too fast, but the technology in the market is developing faster, and it is too risky to rely on our own research and development, and it depends on the face of the market.

Zhang Yi and Xu Zhixing glanced at each other and did not speak.

I felt strange for a long time: "What about this idea, you guys have something to say!"

Zhang Yi glanced at him for a long time: "You melon, if the company is 'handed over' in your hands, it will collapse sooner or later, and you have only now realized such a simple truth, which is really a failure." ”

looked at Zhang Yi in surprise for a long time, and then looked at Xu Zhixing.

Xu Zhixing added: "President Zhang has been working on this for a long time, and he has been impeccable in terms of capital operation. ”

"Why didn't I know about such a big thing?"

It's just that Zhang Yi retorted with a louder voice: "Who didn't tell you, the information has been given to you for the purpose, the contract has your signature, your mind is full of technology research and development all day long, and you are ready to work hard, if it weren't for these technologies bought, how could the workstation have such a fast progress!"

After thinking about it for a long time, this is really the case, and my own brain is indeed a bit stuck in a dead loop.

"So how much did we 'spend'?" asked Chang Chang a little embarrassed.

"I didn't 'spend' much money, except for some hardware technology, the technology of those software companies can of course be deceived and cheated!" Xu Zhixing said with a grin.

"Lie?" I couldn't figure it out for a long time, "how can I cheat? Someone else will deliver something to us for free?"

"Oh, the general flow is like this. Xu Zhixing held his right hand weakly, put it to his ear, and simulated the appearance of making a phone call, "Hey, XX company? Hello, I'm VS, I think your company's XX technology has great potential, but the market acceptance is not high, if it is added to the godson system, I think it will be very beneficial to your software promotion." Yes, 'hand' us the source code, and we'll take care of ......it for you."

Is this okay? Chang Chang's eyes glared out: "Is there a mistake, is there really such a stupid person?"

"There are always people in the world who are willing to do that, as you wish. Xu Zhixing spread his hands and said, "In addition, this is not called stupid, win-win, understand, win-win." ”

"I always think you look like a person. "I have long felt that Xu Zhixing's process is very familiar, and I always feel that I have seen it somewhere, and I can't remember it for a while.

Zhang Yi flipped out another newspaper and said, "Then, don't say I didn't tell you again, Microsoft has held another press conference to promote their Windows system." ”

I have been thinking about it for a long time, and when I heard the word Microsoft, I finally understood why Xu Zhixing's trick would be so familiar, this is Bill's big "door" is a good trick, Bill has always been to call those small software companies to ask for the source code after he completely controlled the "operation" system, and did not pay any fees, and when it reached the final peak, it was always plagiarism, and even did not hesitate to eat lawsuits for it.

"Oh?" "Oh?" sighed for a long time, but fortunately he was still 'very' pure, "Bill is blowing bubbles again?"

"Unfortunately, it's the opposite. Zhang Yi sneered, "This time, they have taken out the real guys, and they have already started internal testing." If you don't do your job properly, I'm afraid you won't have time to dream of becoming a strong country in the future. ”

"Really?" was surprised for a long time, but it was limited to that, "It's rare that Gates' character exploded, and it was actually released as scheduled." Did you get a beta version?"

Xu Zhixing shook his head: "Microsoft just released a few pictures, and it seems to be working well, but now it's just an internal test, and it hasn't been leaked." ”

"That's a shame!" sighed for a long time, "but I'd really like to see how the window system works on 286." ”

"You can't control this, Microsoft has the ability to release and naturally has the ability to convince people. Xu Zhixing said word by word, "Intel also released their latest processor 386, and the samples sent to us show that the 'sex' performance of this thing is indeed strong, with a frequency of up to 20 megahertz, a variety of addressing modes, compatible with all Intel's previous x86 series processors, and its processing power is claimed to have reached five million instructions per second, which has surpassed K32-Pro." ”

This is expected for a long time, after all, the frequency of 386 as high as 20 megahertz is placed there, and it is not good to think about it, Intel's technology still has its own uniqueness.

"This is not a difficult thing, K32-Pro is only a transitional product after all, and I believe that next year it can be made to double the 'sex'. "I have been thinking about it for a long time, after all, the speed of processor research and development of RISC architecture is still dominant, and the number of transistors determines everything," the scale of 280,000 transistors, presumably Intel is now having a headache how to improve the yield of 386, before the new process is not completed mass production, the price of 386 is expensive without asking. ”

In fact, the main reason for this long-term "wave" is the cost of K32-Pro, the number of transistors is much smaller, and the cost is very low, if Dr. Yu's new process can be successfully completed, the frequency increase is not a little bit like this, and it is a big deal to fight a frequency war with Intel.