Digital currency cold death Wallet

in terms of cloth storage and mining, I recommend Heshu hardware wallet and jiajiabao intelligent home miner. The core advantage of the proct is safety

take sum hardware wallet as an example. The advantages of sum hardware wallet are as follows:

1. The private key seed is encrypted layer by layer, physically isolated and never touched the Internet.

firstly, when creating the wallet, the seed password is generated and stored in the local encryption chip, and the 10 bit payment password is required

then, the transaction is made in the wallet. At this time, the user needs to enter the payment password to obtain the private key to digitally sign the transaction, and the transaction is completed. In addition, the private key seed is permanently stored in the chip, which is physically isolated and never touches the Internet. There is no need to worry about my password being stolen by hackers

uses the bank system to verify the financial level motherboard, and the private key seed is stored in the chip. If the proct is stolen or lost, and destroyed by malicious violence, the chip will trigger a self destruct circuit, and immediately permanently and irrecoverably delete all the information in the area

the reason why digital assets attract the attention of many fields in the world is that it is creating a global fast circulation, and the larger the circulation field is, the wider the scope is, and the higher its use value is. The core of digital assets is the medium it acts on among currencies. The Heshu wallet has built-in many mainstream exchanges in the world. It can trade digital assets anytime and anywhere. With one machine in hand, it can walk around the world without worry, and no longer have to worry about exchanging foreign currency

Generally speaking, blockchain wallet is used to store digital currency. In fact, blockchain wallet does not store digital currency, but a tool to store key (private key and public key). With the key, you can have the right to control the digital currency in the corresponding address, and use the digital currency collection address generated in blockchain wallet, You can accept the digital currency transferred to you by others, and you can also transfer the digital currency you own to others.

classification of digital currency wallets:

can be roughly divided into two categories, hot wallet (online wallet) and cold wallet (offline wallet)

first, hot wallet

Hot wallet is also called online wallet, It includes light wallets and heavy wallets (all node wallets). The wallets that need to be connected to the Internet can be directly traded

1. Light Wallet:

does not store the complete blockchain, only stores the data related to itself. It is small in size and can run on mobile phones, computers, web pages, etc

advantages and disadvantages: it does not occupy memory, supports a variety of digital assets, has a good user experience, is fast for novices, but transaction verification is a little slow

2. HEAVY WALLET (full node wallet)

maintains all blockchain data, completely decentralizes and synchronizes all data. It has better privacy and can verify the validity of transaction data locally

advantages and disadvantages: it has better privacy and faster verification of information, but it needs to synchronize data before each use, takes up a lot of hard disk space, and does not support multiple digital currency transactions

Second, cold wallet

cold wallet is not connected to the Internet, also known as offline wallet; For example, professional hardware devices, or private keys (mnemonics) written on paper

1. Hardware wallet

Hardware wallet is to store digital currency with professional hardware, store the private key of digital assets in a chip, isolate it from the Internet, and plug and play

2. Paper wallet

the advantages and disadvantages of writing the private key on paper and then deleting

cold Wallet:

is relatively safe, but it is very troublesome to create a wallet and trade. It is difficult for novices to operate, and the price of wallets is relatively expensive, generally ranging from thousands to tens of thousands of yuan. If you don't have a large amount of digital assets, you don't need to consider

generally, it's recommended for novices to use light wallet. Light wallet is easy to operate and easy to use. Personal used geekwallet

simple and convenient light wallet supports bitcoin (BTC), lightcoin (LTC), Ethereum (ETH), EOS Storage and management of mainstream digital currency assets such as usdt

using bip44 mnemonics, local private key, off-line signature and other security mechanisms, as well as mobile phone and computer al backup strategy, completely solve the loss of digital currency assets caused by hacker attack, virus infection, mobile phone loss, forgetting mnemonics and other ways, and provide users with online Multi Chain digital assets one-stop management service. The platform also has tiaoshao market, which can carry out token trading of physical assets on the chain

PR或PRC(price) 价格

PO(PurchanseOrder)采购订单客户给供应商

RFQ(RequestForQuotation)报价请求

RFI(RequestForInformation)信息邀请书用取产品服务或供应商般资讯请求文件

SOW(StatementOfWork)工作说明书所要提供产品或服务叙述性描述

BOM(BillOfMaterial)物料清单

JIT(Just In Time)准时制生产方式

VMI(VendorManageInventory)供应商库存管理即客户原料属于供应商并由供应商管理

MRO(Maintenance,RepairandOperating)指维修与作业耗材,解释非产性物资

扩展资料：

缩略：为了称说方便，使事物称谓中的成分进行有规律的节缩或者省略叫做缩略

缩略词：有的缩略形式形成了紧密结构，凝固成为一个能自由运用的语言单位，叫做缩略词

在英语中一个英文缩写词可以用任何方法缩短，将通过一些字母部件绘制在一起

缩略方式：

拿掉元音：

MKT: market

MGR: manager

MSG: message

STD: standard

RCV: receive

开始字母：

INFO: information

INS: insurance

EXCH: exchange

I owe you: IOU

In stead of: I/O

头尾发音：

WK: week

RM: room

PL: people

R: are

THO: though

THRU: through

-ism 简写为 m 例如：socialism Sm

-tion 简 简写为 n 例如：standardization (标准化) stdn

-cian 简 简写为 o 例如：technician techo

-ing 简写为 g 例如：marketing (市场营销) MKTg

RCV: Receive

REF: Reference

REGL: Regular

REP: Representative

RESN: Reservation

RPT: Repeat

RESPON: Responsible

SEC: Section

SITN: Situation

STD: Standard

TEL: Telephone

TEMP: Temporary

TGM: Telegraph

THO: Though

TKS: Thanks

TRD: Trade

TRF: Traffic

TTL: Total

U: You

UR: Your

WK: Week

WL: Will

WT: Weight

XL: Extra large

表示"否定"，"消除"等概念：cross out, eliminate, etc.

e.g.=for example

no.=number

i.e.=that is

etc.=et cetera

1st=first

2nd=second

∴=therefore

∵=because

△=replace

<less than

&=and

W/=with

Building=bldg

very expensive=v exp

ecation=e

air-conditioner=a/c

Ad (advertisement)广告

Lab (laboratory)实验室

Gym (gymnasium)健身室，体育馆

Disco (discotheque)迪斯科

Exam (examination)考试

Math (mathematics)数学

Pop (popular music)流行乐

Fan (fanatic)粉丝，狂热者

Memo (memoranm)备忘录

Pub (public house)酒吧

Hippo (hippopotamus)河马

Vet (veterinarysurgeon/veteran)兽医/老兵

Doc (doctor)医生

Gas (gasoline)汽油

Fax (facsimile)传真

Phone (telephone)电话

Burger (hamburger)汉堡包

Coon (raccoon)浣熊

Gator (alligator)短吻鳄

Fridge (refrigerator)冰箱

其他：

AIDS (Acquired Immune Deficiency Syndrome ) 获得性免疫功能丧失综合症，即艾滋病

AM (Amplitude Molation) 调幅

APC (aspirin, phenacetin and caffeine; compound aspirin; heat-relieving and pain-killing medicine consisting of aspirin, phenacetin and caffeine) 复方阿斯匹林

API (Air Pollution Index)空气污染指数

CDMA (Code Division Multiple Access) 码分多址，一种无线电发射和接受方式

CD (Compact Disc) 激光唱盘

CIP (Cataloguing in Publication)预编目录

DIY (Do It Yourself)指自己动手装电脑，缝制衣服，做贺卡等

DVD (Digital Video Disc) 数字化视频光盘

EMS (Express Mail Service) 邮政特快专递

EQ (Emotional Quotient) 情商

IQ (Intelligence Quotient) 智商

IT (Information Technology)信息技术

OA (Office Automation) 办公自动化

OEM (Original Equipment Manufacturer)原始设备制造商

PC (Personal Computer)个人计算机

PT (Particular Transfer) 特别转让

SOHO (Small Office Home Office) 小型家居办公室

SOS (Save Our Souls; radio signal once used universally to appeal for help esp. by a ship or boat; urgent request for help from sb. in trouble) 国际上曾通用的紧急呼救信号，也用于一般的求救或求助

ST (Special Treatment)特别处理

VIP (Very Important Person) 重要人物

VOD (Video on Demand) 视频点播

WWW (World Wide Web) 万维网

The Italian design is totally different from the French design

the French design is to show off their design skills and use all the knowledge in the design book in one car, for fear that you don't know how good I am at "design"

do you like this American, Italian karlmann king

this article comes from the author of car home, which does not represent the standpoint of car home

As far as I know, the current snapdragon 865 is not comparable to the current computer CPU. Due to the platform mismatch, the CPU calculation is inconsistent

instruction set is inconsistent. The structure is inconsistent. They can't compare together. Compared with the computer CPU, it is an aircraft with large space and more passengers, and has its own flight mode and flight route. The CPU of mobile phone is equivalent to car, and it also has its own characteristics. It's not a car here. This platform has decided your biggest operation mode

it's like a plane in the air with a speed of 1000 km / h and the highest fighter with a speed of 7000 km / h. Because the sky platform can provide such speed for him. The car doesn't work. It can support the speed per hour{ RRRRR}

well, in recent years, not only mobile phones, but also the expectation of small partners on mobile phones is increasing. There is a saying called handle, long, no handle. That's how much people rely on mobile phones now. Now people use computers less and less frequently. In addition, many computer client development released mobile client, invisible

mobile phone & lt; Heart & quot; Only the cover size of the nail, but according to the highly integrated SOC identity, this chip perfectly explains & lt; Sparrow has all five internal organs; What is the definition of

if the architecture and process of instruction set determine the ability of SOC (see "popularization of hard core science! Why does SOC performance depend on architecture and process

”， The visual combat effectiveness of SOC depends on the specification of CPU GPU mole. Spouse 865 is the SOC with the highest comprehensive performance in Android mobile phone circle, which comes from the more powerful integrated GPU

next, let's analyze SOC and look at two important moles that affect its absolute performance

CPU:

performance basis

in the components of SOC, CPU is one of the most important core units, which can be understood as the core processor on PC, but its strength is mainly affected by the following parameters

SOC for mobile phones are & lt; ARM processor;, There are three forms of cooperation between arm and chip manufacturers

native cortex-a architecture; Native & quot The architecture includes cortex-a7x at performance level and cortex-a5x at performance level. The former is used as & lt; Big core;, Now the SOC is on cortex-a7x

cortex-a architecture, the better the performance

the latter is & lt; Small nucleus;, Cortex-a73 and cortex-a53, cortex-a75 and cortex-a55 & lt; Getting married;, In the short term, arm has no plan to update the core architecture of performance level

semi custom architecture based on cortex

after obtaining the native cortex-a architecture of arm, chip manufacturers can transform it to some extent to achieve higher performance, more functions or lower power consumption

Qualcomm's snapdragon SOC has been using & lt; Kryo” They are semi customized according to the native cortex-a architecture, which is often referred to as & lt; Magic Reform & quot

Huawei started with Kirin 980, including the latest listed Kirin

820 is not only the main cortex-a-based, but also the semi customized magic reform in theory

instruction set based self-developed architecture

chip manufacturers license the instruction set of arm, and develop chips based on it, which can be classified as & lt; Self research & quot; Architecture

for example, kryo core adopted by snapdragon 820, Samsung oose core and Apple's SOC after A5 adopt self-developed CPU architecture based on ARM instruction set

from the point of view of the cost of arm license, the license cost of native architecture is the lowest, and the license based on instruction set is the highest

from the point of view of performance, there is obvious performance inhibition between architectures in different periods. For example, cortex-a77 is inherently stronger than cortex-a76, but there is little difference among native, magic modified and self-developed architectures in the same period