What does it mean to install additional sub mining machines on c

1.

bitcoin mining machine is a kind of computer used to earn bitcoin. This kind of computer generally has professional mining chips and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server

mining is actually a competition of performance and equipment, and a competition of computing power among miners. Miners with more computing power are more likely to dig bitcoin. With the increase of computing power in the whole network, it is more and more difficult to dig bits with traditional devices (CPU, GPU). People have developed chips specially used for mining. Chip is the core part of mining machine. The process of chip operation will proce a lot of heat, in order to cool down, bitcoin miner is generally equipped with heat sink and fan

< H2 > extended materials:

bitcoin is a kind of virtual currency. Bitcoin mining system is the process of carrying out mathematical operation for bitcoin network through computer hardware. Miners who provide services can get a reward, because the network reward is calculated according to the tasks completed by miners, so the competition for mining is very fierce

bitcoin mining started with low-cost hardware such as CPU or GPU, but with the popularity of bitcoin, the mining process has changed greatly. Nowadays, the mining activities are transferred to the field programmable gate array, and the hash speed can be achieved through optimization. The mining efficiency of this mode is very high

2.

IPFs is a file transfer protocol similar to http. If IPFs wants to run, it needs many computers (storage devices) in the network as nodes. In a broad sense, all participating computers can be called IPFs mining machines

in order to attract more users to join the IPFs network and contribute to the network, an encryption currency named filecoin is designed, which is distributed to the participants (nodes) as a reward according to the amount of contributed storage space and bandwidth. In a narrow sense, the computer specially designed for the purpose of obtaining the filecoin reward is called IPFs mining machine

because IPFs network needs storage space and network bandwidth, in order to obtain the highest profit ratio, IPFs mining machine usually strengthens the storage space and reces the power consumption of the whole machine. For example, more than 10 high-capacity hard disks are equipped, Gigabit or higher speed network cards are equipped, and ultra-low power architecture processors are used

of course, the mining machine provides storage services, so it can obtain revenue. The size of revenue is related to the configuration of mining machinery and the number of IPFs mining machinery

extended data

the reasons why it is not recommended to invest in IPFs are as follows:

1. IPFs technology is too early to be commercialized

IPFs now takes up a lot of bandwidth. IPNs is very slow at present, which is an obvious technical defect. It will be very difficult to realize dynamic web pages only through IPFs

There is no reasonable economic model, even if the token economy is added, it is difficult to realize the long-term natural ecological value

as a very cumbersome decentralized protocol, it is difficult for users to share files autonomously and spontaneously. In addition, even if users share files into the protocol, the files will be completely open and users cannot delete files effectively, so the security of valid files is threatened

the solution is to introce encryption and blockchain incentive mechanism. At the same time, it solves the security and storage power problems of files. However, as mentioned before, any node with workload proof under blockchain incentive mechanism will face an economic problem of continuous power on state

It is difficult to establish an ecological network with IPFs as the core under the influence of technical problems

The ecological application space of

IPFs is quite limited, and the project interaction speed realized by IPFs protocol is also very slow. Of course, it has a direct relationship with the number of nodes and the distance of calling

3. In the first cycle, bitcoin miners can enter the bed pool to grab the first mine. If the head mine has 1000 S9 units participating in mining, according to one block every 10 minutes, each block will be awarded 50 coins, and about 7200 bed will be proced in 24h. On average, one S9 miner will proce about 7.2 bed coins in 24h, and the specific income will be based on the actual participating mining capacity. At present, the computing power of BTC is 149.25eh/s, which is equivalent to the computing power of 10 million S9 machines. If 1% of BTC's computing power participates in bed mining in the future, it will also reach the scale of 100000 S9 units, then the amount of coins g will be only 1% of the amount of bed coins g by the current head mine. The current price of BTC is about ￥ 76000 yuan, so there is a lot of room for the price imagination of bed.

4. Hello, it is to access the broadband network at home or at work. There are four broadband access modes: ADSL, LAN, FTTH and PON:
1. ADSL: Chinese Name: asymmetric digital subscriber line loop. It uses the existing pair of copper twisted pair to provide users with asymmetric transmission rate of uplink and downlink, and the uplink acts as low-speed transmission; In this paper, we propose a high-speed transmission scheme. It is suitable for ordinary family users and small and medium-sized business users with broadband service demand
2. LAN: the access mode mainly adopts Ethernet technology and serves users in the way of information-based community. High speed router is used in the core node to provide users with FTTx + LAN broadband access. Basically, Gigabit to the community, 100 trillion to residential buildings, 10 trillion to users
3. PON is a new broadband access mode, which can provide customers with more stable access and higher rate bandwidth
4. FTTH: the access mode is to directly connect the optical fiber line to the user's home to replace the original cable line on the basis of maintaining the user's existing communication business. Awesome communication capabilities and quality, broadband can achieve a variety of high speed access from 2M/4M/10M to 100M, faster Internet access, and more stable network quality. Online HD video, Internet TV, high-speed downloads, large online games and other network applications are more powerful.

5. Communication Engineering (also known as telecommunication engineering, formerly known as long-distance communication engineering, weak current engineering) is an important branch of electronic engineering, electronic information sub specialty, but also one of the basic disciplines. This subject focuses on the principle and application of information transmission and signal processing in the process of communication. This major studies the knowledge of communication technology, communication system and communication network, and can be engaged in research, design, manufacturing and operation in the field of communication, and in the development and application of communication technology and equipment in various departments of national economy and national defense instry
this subject is a field of information science and technology with rapid development and great vitality, especially digital mobile communication, optical fiber communication and Internet network communication, which makes it more convenient for people to transfer and obtain information than ever before. Communication engineering has a very broad development prospect, and it is also one of the majors with serious shortage of talents. This major studies the knowledge of communication technology, communication system and communication network, and can be engaged in research, design, manufacturing and operation in the field of communication, and in the development and application of communication technology and equipment in various departments of national economy and national defense instry. After graation, he can be engaged in the research, design, technology introction and development of wireless communication, television, large scale integrated circuit, intelligent instrument and applied electronic technology. Communication engineering studies the transmission of information from the transmitter (source) to one or more receivers (sink) in the form of electromagnetic wave, sound wave or light wave through electric pulse. Whether the receiver can identify the information correctly depends on the loss in transmission. Signal processing is an important part of communication engineering, which includes filtering, encoding and decoding
I. long distance communication optical (electric) cable project
1. Provincial * * optical (electric) cable sub section line project (including line, house inspection, etc.)
2. Installation project of * * terminal station, shunting station, transfer station, digital multiplexing equipment and optical (electric) equipment
3. Installation project of * * optical (electric) cable sub section relay station equipment
4 Power supply equipment installation project of relay station (including special high-voltage power supply line project)
5 * * local optical (electric) cable, relay optical (electric) cable line project (including communication pipeline)
6 * * underwater optical (electric) cable project (including water line room construction and equipment installation)
7 * * branch station, transfer station building project (including machine room, auxiliary proction house, line depot, living house Each city is regarded as a single project for incoming and relay optical (electric) cable project
for the larger underwater optical (Electrical) cables in the same project, each project is regarded as a single project
2. Microwave communication trunk line project
1. Microwave equipment installation project of * * provincial microwave station (including antenna, feeder, etc.)
2. Multiplex terminal equipment installation project of * * provincial microwave station
3. Power equipment installation project of * * Provincial microwave station (including special high voltage power supply line project)
4. House construction project of * * provincial microwave station (including station area, proction, auxiliary proction, office Living house)
5. Road construction project outside the station
6. Tower construction project of the station
7. Water supply project of the station
8. Telephone line project of the station
3. Earth station communication project
1. Earth station equipment installation project (including antenna and feeder)
2. Multiplex terminal equipment installation project
3 Power supply equipment installation project (including special high voltage power supply line project)
4. Relay transmission equipment installation project
5. Housing construction project (including proction and ancillary proction, office and living houses)
6. Road construction project outside the station
7. Water supply project
4. Mobile communication project
1 Installation engineering of base station equipment
3. Installation engineering of power supply equipment of base station and exchange office
4. Relay transmission line engineering
5. Construction engineering of station building (including site, proction, auxiliary proction, office and living house)
relay transmission line engineering, such as color microwave line, can refer to microwave trunk line to add single items, such as wired line, Refer to the local telephone line project to add a single item
v. long distance telecommunication hub project
1. Long distance automatic switching equipment installation project
2. Long distance manual switching equipment installation project
3. Telex equipment installation project
4. Automatic telegraph equipment installation project
5. Manual telegraph equipment installation project (including fax machine)
6. Digital multiplexing equipment Optical equipment installation project
7, carrier equipment installation project
8, microwave equipment installation project (including antenna and feeder)
9, microwave carrier equipment or digital multiplexing equipment installation project
10, conference telephone equipment installation project
11, communication power equipment installation project
12, radio terminal equipment installation project
13, long distance incoming line project
14 Communication pipeline engineering
15, trunk line engineering (including terminal equipment)
16, weak current system equipment installation engineering (including small exchange, time transformer, monitoring equipment, etc.)
17, special high voltage power supply line engineering
18, data communication equipment installation engineering
19, special housing construction engineering (including site, main building, business hall, auxiliary proction house, etc.) Microwave antenna tower, etc.)
20, satellite earth station engineering
21, other communication engineering
fax equipment installation engineering can be regarded as a single project or incorporated into the single project of manual telegraph equipment installation according to the engineering quantity
in the same construction project, power supply, antenna, feeder, remote control line, house, special high-voltage power supply line and road outside the station can be regarded as single project respectively when receiving and transmitting stations are constructed separately< 6. Local telephone communication engineering
1. Exchange equipment installation engineering of * * branch office
2. Power supply equipment installation engineering of * * Branch Office (including special high voltage power supply line)
3. Subscriber line engineering of * * Branch Office (including trunk and distribution cable, handover and distribution equipment, hub, pole, etc.)
4. Communication pipeline engineering
5. Trunk line engineering (including audio cable, PCM cable, trunk line, trunk line, trunk line, etc.) Optical fiber cable)
6. Digital equipment installation project of trunk line
7. Housing construction project of * * Branch Office (including main building, auxiliary proction house and living house)
8. Urban telephone network design of * * mole office project
can be included in the comprehensive list of the overall part, and is not regarded as a single project
the design documents of special high-voltage power supply lines are prepared by the contractor, and the budget, budget and technical requirements are included in the single power supply project, without separate single project< 7. Post and telecommunication engineering
1. Post equipment installation engineering
2. Post electronic control equipment installation engineering
3. Business equipment installation engineering
4. Housing construction engineering (including site, main building, auxiliary proction house, office house, living house, municipal pipe network engineering)
5. Postal tunnel construction engineering
6 Power equipment installation project (including special high voltage power supply line project)
postal machinery can be divided into several indivial projects according to the overall transmission, newspaper package, printing, letter, international mail processing, etc
postal electronic control equipment can be divided into indivial projects according to computer management, TV monitoring system, internal communication, timing, display system, proction amplifying, etc.

6. Not only refers to the line, but also includes equipment, a special set of equipment< 1. Transmission line and equipment
2. If the dedicated line user uses a transmission line alone, the designer needs to survey and design before the implementation of the project, and the construction unit also needs to do measurement before the construction
3. The devices involved are switches, transceivers, bridges and MSAP
4. The above three points are pure bullshit, please ignore them.

8. 1Can is two wires,
2Can has two states,
A is recessive state, and the voltage of two wires is 2.5V, indicating that the bit is 1
b dominant state, two line voltage: low 1.5V, high 3.5V, voltage difference 2V; Indicates that the bit is 0
the voltage above 2 li is called differential line to increase anti-interference performance. At the same time, 120 ohm resistance is incorporated into high and low lines to prevent signal oscillation
4 the above is just a hardware explanation of the circuit. Take the beacon tower on the Great Wall as an example
5 the first table smokes. In 131 time units (131 bits of a message, that is 131 bits of a data frame), the other tables will record whether there is smoke in 44 time units. The result is 131 digits composed of zeros and ones: 1001100101011001001001 (there are 131 in total, ha, I don't have a specific count)
6 if there are two tables smoking, smoke first, a don't stop, then smoke. B stops and receives the signal from a
7 two tables smoke at the same time. In the first 11 smoke counts, the one who does not smoke (state 0, dominant level, voltage difference 2V) sends more, the one who has higher priority will not stop, while the other 1-N will stop and receive instead
8 in a 131 time, if one sends out, all other stations will receive and record this series of numbers, and then process the information according to the instructions of the leader (or the password book of the military department). If the information matching the password can be found, the 8 bytes (a 131 frame has 8 * 8 bits of data content, and the other 131-64 = 67 bits are not data) will be saved and put into the box, A-level documents are put in the first password box, B-level documents are put in the second password box, each box has three boxes, only three documents can be received
9 of the data strings received in 131 times, the first 11 are IDS, which are numbers. 12 bits are extension bits, which can be expanded by 28 bits
10 a 131 (called message, called frame) has such segments as arbitration segment (ID segment, which is used for comparison of the codebook mentioned in 5678), data segment (8 bytes * 8 bits), response segment and end segment
11 in arbitration, data is called identifier, which is used to match the password book (called filter, called identifier, called filter)
12 each can hardware has multiple recognizers, and each beacon has multiple codebooks. Two books are a group
13 the mode of each group of codebooks,
a one specifies the detection bit, and the other refers to the positioning status. For example, the first book specifies only the third and fifth digits, and the second book specifies that the third and fifth digits are 0. Then only this kind of information can be stored in the following 8 words (64 bits)

b, one designated password a and one designated password B

C and D are not clear
14 the codebook has 11 digits, so you can't use so many (11 digits are 0-7ff, 0-2046), so the first three digits are the number of the beacon tower, and the last two digits are the function code (such as information urgency, or data type: int char bit). In other words, the arbitration section can use the password as the data section
there are only two digits in the response section of 15. I forgot the details
there are 7-bit recessive levels at the end of 16, which seems like this.