Virtual currency hardware device

1.

mining needs high-end graphics card, mining equipment is the first to eliminate NV graphics card. Mining must be done with graphics cards. The overall structure of mining equipment and ordinary PC machine is different is the number of graphics cards. You can install four or eight through pic extension

after expansion, an expansion shelf needs to be made. To fix the graphics card and other equipment, we need to get some fans on the shelf to cool the graphics card

CPU is not very important. But not lower than i5< br />

2. 1. Ledger wallet
ledger wallet is a hardware wallet with general ease of use and high security
ledger, a manufacturer of bitcoin hardware wallet, is one of the leading companies in the field of digital currency security, which can provide reliable hardware for consumers and enterprises. Ledger is a bitcoin hardware wallet based on smart card, which provides the highest level of protection with advanced technology, as well as usability and controllability. Ledger hardware wallet is a multi-functional wallet. It is a hardware device that can store private key safely. When viewing wallet and sending transaction, hardware wallet needs to cooperate with software wallet to use. At the same time, it supports secure storage of bitcoin, Ethereum and platform token, zcash, etc. Its project is already open source on GitHub. Based on its hardware devices, you can use either the software wallet developed by ledger or the software wallet developed by other teams, that is, you can use ledger with Ethereum web wallet myetherwallet or parity wallet
2. Trezor
trezor is easy to use and safe, so it belongs to hardware wallet
trezor is a high-tech data encryption memory. The proct is proced in Czech Republic. This brand is recognized in the instry as the earliest, most cautious and most secure encrypted memory, and has been verified by global digital currency players as a reliable brand with excellent company record and rich software support. Trezor's security model is based on the principle of zero trust. The principle of zero trust is a security system that assumes that any part of it may be attacked successfully
3. Opendime
opendime is a hardware wallet with general usability and high security
opendime, a manufacturer of bitcoin hardware wallets, is one of the "leading technology" companies in the field of digital currency security. It is affiliated to coinkite, a bitcoin enterprise in Canada, which provides services for bitcoin and lightcoin wallets, as well as payment terminals. Legal currencies supported include US dollar, RMB, euro, Canadian dollar, British pound, Polish zloty, Russian ruble, Australian dollar, Japanese yen, Brazilian currency, Swedish krona, etc. Opendime is a hardware wallet, its private key is generated inside the device, and will not be known by anyone, not even you! Opendime multilingual user interface: Chinese, Japanese, English, Portuguese, French, German, French bring convenience to you
4. Kushen wallet
Kushen wallet is easy to use and safe, and belongs to mobile phone and hardware wallet
the English name of Kushen wallet is coldlar. Kushen wallet belongs to Beijing Kushen Information Technology Co., Ltd. It is a technology company focusing on providing secure storage solutions for encrypted assets. Kushen company is deeply engaged in blockchain security technology, providing various forms of personal wallet procts such as hardware wallet, mobile app wallet, cloud wallet and multi signature wallet, as well as professional enterprise wallet procts. The hardware wallet adopts the "hot and cold separation" architecture, and uses various data encryption transmission methods such as QR code, Bluetooth, NFC, etc. to make the private key never touch the network, completely eliminate the risk of private key being stolen by network hackers, and realize the safe storage of a variety of encrypted assets
5. Bitgo
bitgo is a computer wallet with average ease of use and medium security
bitgo is a high security multi signature wallet, which protects your bitcoin from being stolen and lost. You keep your wallet on your own; Bitgo cannot spend or freeze money. Multiple bitgo wallets are also easy to use and provide advanced security features such as consumption restrictions and multi-user access
6. Keepkey
keepkey is a hardware wallet with high ease of use and medium security
keepkey is a hardware wallet to protect your digital assets such as bitcoin and Ethereum from hackers and thieves. Keepkey wallet supports multi currency hardware wallet, which is currently acquired by shapeshift. Keepkey adopts a unique recovery mechanism, which makes it more secure to use. This mechanism allows users to recover in 12 words. Additional security means that users do not need to store private keys on the device. They can recover their private keys and transactions and then erase the records on the device. This is currently the safest way to store bitcoin
7. Wookong
wookong is a hardware wallet with high ease of use and high security
wookong is a professional encryption digital asset escrow solution (Patent No.: zl201710884108.5) which combines high-strength cryptography algorithm and high-level financial security hardware solution. It has higher security than multi signature wallet and cold wallet. Main customers: financial institutions, exchanges and teams with higher security requirements than ordinary hardware cold wallets and multi signature wallets
8. Coinbase
coinbase is easy to use, medium security, and belongs to mobile phone and computer wallet
coinbase wallets, coinbase wallets come from Toshi wallets, and coinbase wallets are redefining the encrypted wallets that users expect. It's not just a tool for accessing cryptocurrency, you can see it as a foothold for exploring distributed networks. With coinbase wallet, you can: manage Eth and all your ecr-20 currencies (BTC, BCH and LTC will soon be supported); Receive airdrop and ICO currency; Purchase and store cryptocurrency (non replaceable currency, but can be used in the game or traded in the market); Can carry on the currency transaction without the service charge with any person in any place; Buying and selling currency through mass exchange or agent; It can access any third-party dapps to realize the functions of borrowing or lending to earn cryptocurrency by others in the blockchain through verification, service execution or task completion
9. Imtoken
imtoken is easy to use, medium security and belongs to mobile wallet
as a professional digital asset wallet, imtoken wallet is safe and easy to use; Support multi chain and multi currency management and exchange, so that blockchain technology can be better integrated into your life. Imtoken's vision is to make economic incentives consistent, privacy inviolable and value flow freely
imtoken has recently obtained a round a investment of IDG capital of US $10 million. He bin, founder and CEO of imtoken, said that this round of financing will support the development of imtoken's overseas market and the reserve of more technical talents
10. Atoken
atoken is easy to use, medium security and belongs to mobile wallet
atoken mobile digital currency wallet is light and safe, and supports 19 Currencies & Cross Chain swap. It aims to provide more convenient, more secure and more currency multi-dimensional services for the majority of digital currency users, and to build a leader in digital asset storage app.

3.

The differences between e-money and virtual money are as follows:

1. Electronic money refers to using a certain amount of cash or deposit to exchange from the issuer and obtain data representing the same amount, or through the quick payment service launched by the bank and the third party to transfer the balance in the bank through some electronic ways, so that transactions can be carried out. Strictly speaking, it is a kind of currency that consumers use the bank's Internet banking service to store value and make quick payment to the issuers of electronic currency, and make consumers trade electronically through media (two-dimensional code or hardware equipment)

virtual currency refers to non real currency. Well known virtual currencies, such as online currency of Internet company, q-coin of Tencent company, q-point and voucher of Shanda company, micro currency launched by Sina (used for micro games, Sina reading, etc.), chivalrous Yuanbao (used for chivalrous road game), silver grain (used for bixue Qingtian game), and popular digital currencies in 2013 include bitcoin, Laite coin, infinite coin, quark coin, zeta coin, etc Barbecue coins, pennies (Internet), invisible gold bars, red coins, prime coins. At present, hundreds of digital currencies are issued all over the world. Popular in the circle & quot; The legend of "bitcoin, Wright silver, infinite copper, pennies aluminum"

The detailed explanation of electronic currency is as follows:

1. Concept: it is an encrypted serial number representing cash, which can be used to represent the currency value of various amounts in reality. With the transformation from paper-based economy to digital economy, e-cash will become the mainstream

2. Features: anonymity, transaction cost saving, transmission cost saving, low holding risk, flexible and convenient payment, anti-counterfeiting and anti repetition, non traceability

There are two kinds of e-cash: one is based on the Internet and keeps the binary data representing the value of money in the hard disk of the computer terminal; One is the electronic wallet that keeps the monetary value in the IC card and can be circulated without the bank payment system

4. Definition: consumers pay traditional money to the issuers of electronic money, and the issuers store the equal value of traditional money in the electronic devices held by consumers in electronic form

4. Virtual currency refers to non real currency. Well known virtual currency, such as network company's network currency, Tencent company's Q currency, Q point, Shanda company's voucher; The popular digital currencies in 2013 include bitcoin, Leyte coin, Fuyuan coin, doggy coin and so on
network virtual currency can be roughly divided into

the first category is familiar game currency. In the era of stand-alone games, the protagonist accumulates money by knocking down the enemy, entering the gambling house to win money, and using these to buy Herbs and equipment, but it can only be used in his own game console. At that time, there was no "market" between players. Since the establishment of Internet portal and community, the realization of game networking, virtual currency has a "financial market", players can trade game currency
the second type is the special currency issued by the portal website or instant messaging service provider, which is used to purchase the services in the website. The most widely used is Tencent's q-coin, which can be used to purchase membership, QQ show and other value-added services
the third kind of virtual currency on the Internet, such as bitcoin (BTC), Fuyuan coin (FTC), Wright currency (LTC), etc. bitcoin is an electronic currency proced by open-source P2P software. Some people also translate bitcoin as "bitcoin", which is a kind of network virtual currency. It is mainly used for Internet financial investment, and can also be directly used in daily life as a new currency.

5. Virtual currency has no direct relationship with the Internet of things. If there is a possible relationship in the future, virtual currency will only transmit the amount of virtual currency through device instructions to achieve the control effect. For example, smart vending machines may be able to exchange a bottle of water or a bag of tissues in the future through the accumulated virtual currency
but the virtual currency on the market now has no liquidity, In real life, it's worthless and can't be exchanged for anything
all of the above are personal opinions, please accept them, thank you

6. Mining equipment is the first to eliminate NV graphics card. Mining must be done with graphics cards
CPU is not very important. However, it should not be lower than i5,
the difference between the overall structure of mining equipment and ordinary PC machine is the number of graphics cards
four or eight can be installed through pic extension. Of course, you think it's enough for two, one is OK
after expansion, you need to make your own expansion shelf. To fix the graphics card and other equipment, we need to get some fans on the shelf to cool the graphics card.

7. Mining is mainly to see the graphics card, generally with AMD graphics card to dig, such as R9 280x what the best group of crossfire

8. It depends on your hobbies. If you like to take photos, oppo. If you want performance, candy

9. 1. First of all, as a qualified miner, we must prepare a professional mining tool
2. The mining requirement is level 11, but I suggest that we go to level 20 before mining. There are two reasons
the No. 11 backpack of level 1 has less load, especially the mage has already loaded the load before digging a few mines. It's very troublesome to go back and sell it and run back and forth
the second trumpet is easy to be killed. In order to carry more ore at one time, the package is basically empty. Once more than three people kill you, you will die before you have time to press back to the city.