Where did ned digital currency come from

1.

1. Application of different

digital currency: fast, economic and safe payment and settlement; Bill finance and supply chain finance; The real right of collateral is digitalized

e-money: the seller sends the buyer's payment instructions to the seller's acquiring bank through the payment gateway; The acquiring bank obtains the authorization from the issuing bank through the bank card network, and sends the authorization information back to the seller through the payment gateway; After obtaining the authorization, the Seller shall send the buyer the shopping completion information. If payment acquisition and payment authorization cannot be completed at the same time, the seller should send payment acquisition request to the acquiring bank through the payment gateway, and transfer the transaction funds from the buyer to the seller's account. The final inter-bank settlement is completed by the payment system between banks

2. Different characteristics

digital currency is characterized by low transaction cost, fast transaction speed and high anonymity

e-currency is characterized by anonymity, saving transaction cost, saving transmission cost, small holding risk, flexible and convenient payment, anti-counterfeiting and anti repetition, and non traceability

Digital currency can be divided into three categories: completely closed, unrelated to the real economy and only used in specific virtual communities, such as world of warcraft gold; It can be purchased in real currency but not converted back to real currency, and can be used to purchase virtual goods and services, such as Facebook credit; It can exchange and redeem with real currency according to a certain ratio. It can purchase both virtual goods and services and real goods and services, such as bitcoin

e-money: e-cash based on the Internet environment and keeping the binary data representing the value of money in the hard disk of the computer terminal; An electronic wallet that keeps the value of money in an IC card and can be circulated out of the bank payment system

2. The core task of mining is undertaken by the general computing power of the graphics card, and the data storage uses the ordinary mechanical hard disk, which can meet the operation requirements.

3. 1. Abbreviations for various organizations or institutions

APEC (Asia Pacific Economic Cooperation)

IOC (International Olympic Committee)

ISO (International Organization for Standardization)

OPEC (organization of Petroleum Exporting Countries) OPEC, Organization of Petroleum Exporting Countries (OPEC)

WTO (World Trade Organization)

2. Abbreviations for various systems

BBS (bulletin board system) or (bulletin board service) electronic announcement service

GPS (Global Position System)

GSM (Global System for mobile communication) Global mobile communication system

CIMS (Computer Integrated Manufacturing System)

DOS (disk operating system)

its (Intelligent Transportation System)

NMD (National Missile Defense)

NASDAQ Association of Securities Dealers Automated Quotation) Nasdaq, & lt; Beauty & gt; National Association of Securities Dealers' Automated Quotation System (Nasri)

3. Abbreviations for positions or degrees

CEO of chief executive officer

CFO CFO CIO CIO CIO coo CEO

CTO Technology officer

CPA

MBA (Master of Business Administration)

MPa (Master of Public Administration)

4

CBD (central business district)

GDP

GNP (gross national proct)

5 Other abbreviations of AIDS (acquired immune deficiency syndrome), That is, AIDS

am (amplitude molation)

API (air pollution index)

CDMA (code division multiple access), A radio transmitting and receiving mode

CD (compact disc) compact disc

CIP (Cataloging in Publication) pre cataloguing

DIY (do it yourself) refers to self assembling computer and sewing clothes, Make greeting cards, etc.

DVD (digital video disc)

EMS (express mail service)

EQ (emotional quotient)

IQ (intelligence quotient)

it (Information Technology)

OA (office automation)

OEM (original) Equipment manufacturer (OEM)

PC (personal computer)

SOHO (small office home office) small home office

SOS (save our souls; radio signal once used universally to appeal for help esp. by a ship or boat; Emergency request for help from sb, It can also be used for general help or help

VIP (very important person)

VOD (video on demand)

WWW (World Wide Web)

Internet chat common English abbreviations
ASAP as soon as possible
BF boyfriend boyfriend
GF girlfriendgirlfriend
btw by the way
BBL be back later
BRB be right back soon
Cu see you goodbye
cul see you later see you next time
diik remembered if I know I really don't know
Fe for example
FTF face to face
FYI for your information for reference
IAE in any event anyway
IC I see I know In other words,
lol laughing out loud
NRN no reply necessary
OIC Oh, I see, I know
PEM privacy Enhanced Mail
RSVP reply if you please
TIA thanks in advance
ttul talk to you later
ty thank you
VG very good
wymm will you marry me

4.

The contract transaction of digital currency is not safe. There are still many loopholes in the digital currency trading platform, for example, the most common ones are as follows:

1. Denial of service attack

denial of service attack is the most important attack against the digital currency trading platform at present. Through the denial of service attack, the attacker makes the trading platform unable to access normally, while the user cannot accurately distinguish the attack degree, It often leads to panic asset transfer, which brings some loss

5. It's more than 20 km,
if it's Hongqiao Railway Station, Metro Line 10 goes directly to Wujiaochang< Many roads in Wujiaochang are called zhengx Road, such as Zhengli Road, Zhengmin road and Zhengxiu road
but there is no government to support the road. Are you mistaken.