China Digital benchmarking Ethereum
China decentralized exchange is based on defi technology to create the core ecological only pass CNU, implement the application of Ecological Application in coin mining, shopping mall, game, quantum computing power and other matrix, and let the participants obtain 10 billion market value
there is no private placement, public offering, and CNU issuance mechanism in the project, which determines that everyone has more than 10 years' income. Shenzhou gives 40% of the transaction fees to the participants and players, shares the interests, destroys 40% of the transaction fees, and gives 20% to the foundation. The foundation feeds back on the market, and constantly gives community benefits and welfare to the market. The perfect mechanism determines the value of CNU, Shenzhou union is a decentralized exchange at the head of Ethereum's defi ecosystem, which provides users with better privacy, transparency and censorship, and allows users to trade with unlimited trading pairs; CNU will double its value as China's influence continues to expand
at present, the CNU investment market is booming, and the whole network is applying for CNU fairly and justly. The price of the first phase of CNU on September 8 is 0.15usdt/piece, which has been increased five times outside the market, and the price is unlimited recovery
the value of CNU participating in Shenzhou stock exchange is a one-time investment with lifelong benefit. All data are written on the chain and cannot be tampered for at least 10 years; Point to point trading, decentralization, to protect the participation interests of retail investors; Large investors break up investment, consensus CNU value, long-term operation; High community activity, mechanism determines the rise of CNU value
(the above are all related introctions of CNU from the Internet, from golden finance, you can refer to the following. But I haven't been in touch with it, so I'd better look at the information)
wireless network card
support 802.11b/g/n wireless protocol support 802.11b/g/n wireless protocol support 802.11b/g/n wireless protocol
wired network card
1000Mbps Ethernet card 1000Mbps Ethernet card 1000Mbps Ethernet card
many people in the circle think that blockchain technology is the underlying technology of bitcoin, but in fact, more people think that bitcoin is the first application of blockchain technology. Blockchain was initially defined as a distributed ledger, that is, each node of the blockchain has all the transaction information and data of the system. But bitcoin's billing speed (transaction speed) is set to 7 transactions per second. With the continuous development of science and technology, the speed of 7 transactions per second can not meet the needs of some applications. As a result, many people who know the technology hope to build a main chain and imitate the way of bitcoin, but greatly improve its trading speed. And the implementation of a smart contract, open source underlying system. Ethereum is one of them
the benchmark of nuls is Ethereum: the instrial blockchain technology standard follows the principles of hot plug, molarization and parallel expansion, and provides replaceable functional moles such as intelligent contract, multi chain parallel, consensus mechanism, P2P network, storage, encryption, multi-level account, etc. The nuls smart contract mole is between the external service mole (such as RPC mole) and the underlying facilities mole (such as network mole, storage mole, account mole, etc.), and the storage mole, basic encryption algorithm, account mole, network mole and other moles provide the underlying support for nuls. As a blockchain project with anti-counterfeiting traceability as the breakthrough point, yinlian has strategic cooperation with nuls, and will access nuls in the form of sub chain in the later stage
in general, nuls is a global blockchain open source community project, which is a highly customizable blockchain infrastructure composed of microkernel and functional moles. Nuls has developed a set of instrial blockchain technical standards, following the principles of hot plug, molarization and parallel expansion, providing replaceable functional moles such as smart contract, multi chain parallel, consensus mechanism, P2P network, storage, encryption, multi-level account, etc. Specific information can also refer to the relevant white paper.
Dell is a big international brand with excellent workmanship and materials, and direct selling has a certain price advantage. However, Dell's after-sales service is really poor, and the response is slow in some regions, not to mention the phenomenon of shirking is very common
ASUS is an international brand with first-class workmanship and materials. Service outlets basically cover prefecture level cities and counties in developed areas. Quick response to the service, average service quality, but don't shirk the warranty
Shenzhou is a big brand in China. Its procts are famous for their high cost performance and common materials. Today, when the computer update cycle is very short, it has a great advantage, because even computers with common materials can not be used bad before they are eliminated. Service outlets cover most of the country's cities at or above the county level, with fast service response, average service quality and no warranty
recommended computer model
Dell device E5400
reason for recommendation: Dell device E5400 price is about 4700, using core 2 Duo t7250 processor, Centrino 2 technology can well support mobile office and Internet needs, can fully meet your needs. The disadvantage is not independent graphics card, can not run large games. The business office model
Shenzhou elegant hp650
adopts Intel Core 2 al core t6400 processor, with PM45 motherboard and NVIDIA geforce 9300M GS graphics card, which can smoothly run all current online games and almost all stand-alone games. It's the first choice for young fashion people. The price of the whole machine is about 4400
when buying a book, the first thing to do is to choose a business, preferably a regular agent. After selecting the model, the merchant should pay attention to whether the package is in good condition when taking the goods. If it has been opened, the merchant must ask to replace the unopened one. After opening, check whether the accessories and CD are consistent with the packing list.
before power on, carefully check the machine serial number on the bottom of the machine, the packing box and the warranty form to see if they are consistent. (after power on, you can check the machine serial number displayed in BIOS again, which is only for the machine number. The serial numbers of batteries, floppy drives and other accessories will be different) whether there are scratches on the body and LCD display, whether there is st on the processor fan (B, C two points mainly determine whether the machine is a sample machine, It is impossible for the sample machine to be spotless when it is placed outside for a long time)
check whether there are scratches on the contact part between the battery and the slot of the machine and on the metal sheet of the battery (in this way, it can be judged whether the battery is used or not)
then turn on the machine to check whether there are bad spots and bright spots on the LCD, and use software to check whether the hardware and instructions of the machine are completely consistent
you can take it home after finishing these basic tasks.
advantages
1. The price is cheap. When I bought this notebook, it was 4000 yuan only. I bought it on May Day. I only gave it a mouse and a bag, but I didn't have anything else. When the shopping guide said that everything (including cooling base, external keyboard, anti-virus software, etc.) was given away, he wouldn't give up a cent
2. The heat dissipation of the whole machine is very good. I play Tianxia II, and the effect is fully on. The CPU is about 63 degrees, and the graphics card is 65 degrees. When I first bought it, I started it and ran it for more than 10 hours every day, and I played Tianxia II, which is still the same temperature. My roommate and I bought Lenovo Y460 together. In less than an hour, the video card reached 79 degrees. Master Lu called the police several times and was too scared to play. Hehe
3. The keyboard is very cool. This machine is a chocolate keyboard. It feels good. You'll know it after using it
disadvantages
1. The buttons under the touchpad are a little stiff, and it's not very comfortable to press them
2. The sound is very small. It's not exaggerating to say that it's almost the same as a mosquito flying by, and the sound is a little broken after all. I have an impulse to hit people. I don't know what other people's machines are like. It is recommended to buy a small speaker or a pair of good headphones
3. When case is turned on, the numeric keyboard has no display light, which is a little uncomfortable
overall evaluation, this machine is still very good, anyway, I use it very well, you have to be prepared to use Shenzhou, because Shenzhou in order to rece the price, save everything, such as my external speaker, very rubbish, my classmate Lenovo Y460 is very good, ha ha, it depends on what you think, play the game, the graphics card is not, the new games in 2010 can play, The effect is all open, you just play, if the summer is too hot, buy a cooling pad. The workmanship is OK. It's much better than before. It looks good. It's suitable for both boys and girls. The quality is OK< As like as two peas, Br and />A460, there are two parts, I3 and i5, and the only difference is that CPU is different. The other aspects are the same. I believe you have read it online. I don't say much. I3 and i5 are similar, i5 is faster than I3. I am not sure about it. When you buy it, you can consult the guide, and see what "core chips" are on the Internet. I don't think you can understand proper terms such as "core architecture". Those are just reference numbers. You can only feel them after using them. In short, i5 is definitely better than I3. If you have more money, you can buy i5. For playing games, I3 is OK.
CPU series: Intel Core i7 9 series
CPU model: Intel Core i7 9750h high end machine more Core i7 CPU & gt
CPU frequency: 2.6GHz
maximum frequency: 4.5ghz running smoothly
number of cores / threads: six cores / twelve threads multi task running strong
Level 3 cache: 12MB
bus specification: DMI 8 GT / s
core architecture: coffee Lake & gt
process technology: 14nm
power consumption: 45W high power consumption
storage device
memory capacity: 16GB high speed popular game book & gt
memory type: DDR4 & gt
maximum memory capacity: 32GB
hard disk capacity: 512gb
hard disk Description: SSD & gt
optical drive type: no built-in optical drive & gt
touch screen: does not support touch
screen size: 15.6 "15.6 games, more convenient 15.6" laptops & gt
display ratio: 16:9
screen resolution: 1920x1080 Full HD screen more full HD Laptop & gt
Screen Technology: FHD, LED backlight & gt;, IPS screen, 6mm narrow frame, 72% color gamut
type of graphics card: fever independent graphics card
chip of graphics card: NVIDIA geforce GTX 1650
memory capacity: 4GB normal more 4GB Notebook & gt
video memory type: gddr5 & gt
bit width: 128bit & gt
camera: integrated camera Puqing
audio system: built in sound chip
Speaker: built in speaker
microphone: built in microphone
wireless network card: built in wireless network card
wired network card: 1000Mbps Ethernet card
Bluetooth: support Bluetooth function
audio interface: headphone output interface, Real picture of microphone input interface and audio interface & gt
other interfaces: RJ45 (network interface), power interface and other interfaces & gt
pointing device: touch pad
keyboard Description: RGB backlight keyboard
battery type: lithium battery
battery life: depending on the specific use environment, the battery life of notebook & gt
power adapter: 100v-240v 120W adaptive AC power adapter
extended materials:
Shenzhou ares series all start with Z, the first digit after the number indicates the size of the screen, the letters after the number are "m" and "P", m means integrated graphics card, P means independent graphics card, ”-"The alphanumeric combination after" represents the type of CPU. Shenzhou ares series is characterized by high configuration, more instrial design than other series, and no bad screen
the time limit for return of Shenzhou Zhanshen series procts is 7 days from the date of purchase, and the time limit for free replacement is 8-15 days after purchase. Warranty period: 1 year for the whole machine, 3 years for CPU, memory and hard disk, 2 years for main components such as motherboard, power adapter, display screen and keyboard, and half a year for battery
reference source: Zhongguancun Online - Shenzhou Zhanshen z7m-ct7gs parameters
In the early morning of October 15, 2003, the launch of Shenzhou-5 spacecraft entered the countdown of two hours, and the first astronaut Yang Liwei had entered the spacecraft and was on standby“ Shenzhou V, I'm zero. How about listening to my voice? " The loud and clear voice of No.0 commander spread all over the control posts, but the voice of the astronauts in the spacecraft was intermittent, and there was a "click" noise
it's the first time for the Chinese nation to make the first manned flight. Every move of the astronauts has attracted the attention of the world. If there is any mistake in the process, it will cause irreparable consequences. The general manager of the launch command system couldn't sit still and asked anxiously, "what's the matter?" The commander of the launch site called the TT & C station and ordered the station to solve the problem as soon as possible
Before the launch of the Shenzhou-5 manned spacecraft, Chen Fufeng, the deputy director of the optical measurement room, found that the angle between the sun formed by the launch window of the spacecraft would adversely affect the tracking and imaging of the two optical measurement devicesthis made him sleep and eat uneasily. He got up in the middle of the night, calculated the change of the sun angle in the process of tracking, and organized more than 50 tracking and imaging experiments in a week. Afterwards, he wrote "tracking imaging analysis report" in time, and formulated effective measures to rece the impact of the sun angle on the mission
in order to eliminate the hidden danger, the technical personnel compiled a variety of test programs by combining "isolation method" with test means. After more than two months of graal investigation, it was finally found that the Ethernet card model on the two types of microcomputer servers did not match the server performance, and the relevant application software provided by the manufacturer was defective in design
the technical personnel of the measurement and control station immediately replaced the high-performance network card, modified the relevant parameters of the real-time application software, changed the original "intelligent forwarding" mode to "store and forward", and re made the network cable connector, which completely solved the problem of data "packet loss"
extended materials:
the Shenzhou-5 manned space mission has realized the Chinese nation's desire to fly to the sky for a thousand years, is a high degree of cohesion of the Chinese nation's wisdom and spirit, and is a new milestone of China's space instry in the new century. The successful launch of Shenzhou V marks that China has become the third country to independently master manned space technology after the former Soviet Union (Russia) and the United States