Cryptocurrencies have become increasingly popular over the past several years - as of 2018, there were more than 1,600 of them! And the number is constantly growing. With that has come to an increase in demand for developers of the blockchain (the underlying technology of cryptocurrencies such as bitcoin). The salaries blockchain developers earn show how much they are valued: According to Indeed, the average salary of a full-stack developer is more than $112,000. There’s even a dedicated website for cryptocurrency jobs.
Whether you’re interested in a career as a blockchain developer or you just want to keep up with the latest trends in tech, Simplilearn’s Cryptocurrency Explained video explains what cryptocurrency is and why it’s important will get you off to a good start. Here we’ll recap what’s covered in the video.
A Brief History of Cryptocurrency
In the caveman era, people used the barter system, in which goods and services are exchanged among two or more people. For instance, someone might exchange seven apples for seven oranges. The barter system fell out of popular use because it had some glaring flaws:
People’s requirements have to coincide—if you have something to trade, someone else has to want it, and you have to want what the other person is offering.
There’s no common measure of value—you have to decide how many of your items you are willing to trade for other items, and not all items can be divided. For example, you cannot divide a live animal into smaller units.
The goods cannot be transported easily, unlike our modern currency, which fits in a wallet or is stored on a mobile phone.
After people realized the barter system didn’t work very well, the currency went through a few iterations: In 110 B.C., an official currency was minted; in A.D. 1250, gold-plated florins were introduced and used across Europe; and from 1600 to 1900, the paper currency gained widespread popularity and ended up being used around the world. This is how modern currency as we know it came into existence.
Modern currency includes paper currency, coins, credit cards, and digital wallets—for example, Apple Pay, Amazon Pay, Paytm, PayPal, and so on. All of it is controlled by banks and governments, meaning that there is a centralized regulatory authority that limits how paper currency and credit cards work.
Blockchain Certification Training Course
Gain expertise in core Blockchain conceptsVIEW COURSEBlockchain Certification Training Course
Traditional Currencies vs. Cryptocurrencies
Imagine a scenario in which you want to repay a friend who bought you lunch, by sending money online to his or her account. There are several ways in which this could go wrong, including:
The financial institution could have a technical issue, such as its systems are down or the machines aren’t working properly.
Your or your friend’s account could have been hacked—for example, there could be a denial-of-service attack or identity theft.
The transfer limits for your or your friend’s account could have been exceeded.
There is a central point of failure: the bank.
This is why the future of currency lies with cryptocurrency. Now imagine a similar transaction between two people using the bitcoin app. A notification appears asking whether the person is sure he or she is ready to transfer bitcoins. If yes, processing takes place: The system authenticates the user’s identity, checks whether the user has the required balance to make that transaction, and so on. After that’s done, the payment is transferred and the money lands in the receiver’s account. All of this happens in a matter of minutes.
Cryptocurrency, then, removes all the problems of modern banking: There are no limits to the funds you can transfer, your accounts cannot be hacked, and there is no central point of failure. As mentioned above, as of 2018 there are more than 1,600 cryptocurrencies available; some popular ones are Bitcoin, Litecoin, Ethereum, and Zcash. And a new cryptocurrency crops up every single day. Considering how much growth they’re experiencing at the moment, there’s a good chance that there are plenty more to come!
What is Cryptocurrency?
A cryptocurrency is a digital or virtual currency that is meant to be a medium of exchange. It is quite similar to real-world currency, except it does not have any physical embodiment, and it uses cryptography to work.
Because cryptocurrencies operate independently and in a decentralized manner, without a bank or a central authority, new units can be added only after certain conditions are met. For example, with Bitcoin, only after a block has been added to the blockchain will the miner be rewarded with bitcoins, and this is the only way new bitcoins can be generated. The limit for bitcoins is 21 million; after this, no more bitcoins will be produced.
What exactly is Cryptocurrency?
Benefits of Cryptocurrency
With cryptocurrency, the transaction cost is low to nothing at all—unlike, for example, the fee for transferring money from a digital wallet to a bank account. You can make transactions at any time of the day or night, and there are no limits on purchases and withdrawals. And anyone is free to use cryptocurrency, unlike setting up a bank account, which requires documentation and other paperwork.
International cryptocurrency transactions are faster than wire transfers too. Wire transfers take about half a day for the money to be moved from one place to another. With cryptocurrencies, transactions take only a matter of minutes or even seconds.
What makes Cyptocurrencies special?
What is Cryptography?
Cryptography is a method of using encryption and decryption to secure communication in the presence of third parties with ill intent—that is, third parties who want to steal your data or eavesdrop on your conversation. Cryptography uses computational algorithms such as SHA-256, which is the hashing algorithm that Bitcoin uses; a public key, which is like a digital identity of the user shared with everyone; and a private key, which is a digital signature of the user that is kept hidden.
Decipher the global craze surrounding Bitcoin and Cryptocurrencies with the Blockchain Certification Course! Click here for the course preview!
Cryptography in Bitcoin Transactions
In a normal bitcoin transaction, first, there are the transaction details: whom you want to send the bitcoins to and how many bitcoins you want to send. Then the information is passed through a hashing algorithm. Bitcoin, as mentioned, uses the SHA-256 algorithm. The output is then passed through a signature algorithm with the user’s private key, used to uniquely identify the user. The digitally signed output is then distributed across the network for other users to verify. This is done by using the sender’s public key.
The users who check the transaction to see whether it’s valid or not are known as miners. After this is done, the transaction and several others are added to the blockchain, where the details cannot be changed. The SHA-256 algorithm looks something like in the image below.
SHA-26 Algorithm
You can see how complicated it is, meaning it’s safe to say that the encryption is very difficult to hack.
Blockchain Career Guide
A Guide to Becoming a Blockchain DeveloperDOWNLOAD NOWBlockchain Career Guide
Bitcoin vs. Ethereum
You now know that Bitcoin is a digital currency that is decentralized and works on the blockchain technology and that it uses a peer-to-peer network to perform transactions. Ether is another popular digital currency, and it’s accepted in the Ethereum network. The Ethereum network uses blockchain technology to create an open-source platform for building and deploying decentralized applications.
Similarities
Bitcoin and ether are the biggest and most valuable cryptocurrencies right now. Both of them use blockchain technology, in which transactions are added to a container called a block, and a chain of blocks is created in which data cannot be altered. For both, the currency is mined using a method called proof of work, involving a mathematical puzzle that needs to be solved before a block can be added to the blockchain. Finally, both bitcoin and ether are widely used around the world.
Differences
Bitcoin is used to send money to someone. The way it works is very similar to the way real-life currency works. Ether is used as a currency within the Ethereum network, although it can be used for real-life transactions as well. Bitcoin transactions are done manually, which means you have to personally perform these transactions when you want them done. With ether, you have the option to make transactions manual or automatic—they are programmable, which means the transactions take place when certain conditions have been met. As for timing, it takes about 10 minutes to perform a bitcoin transaction—this is the time it takes for a block to be added to the blockchain. With ether, it takes about 20 seconds to do a transaction.
There is a limit to how many bitcoins can exist: 21 million. This number is supposed to be reached by the year 2140. Ether is expected to be around for a while and is not to exceed 100 million units. Bitcoin is used for transactions involving goods and services, and ether uses blockchain technology to create a ledger to trigger a transaction when a certain condition is met. Finally, Bitcoin uses the SHA-256 algorithm, and Ethereum uses the ethash algorithm.
As of May 2020, 1 bitcoin equals $8741.81 dollars, and 1 ether equals $190.00.
The Future of Cryptocurrency
The world is clearly divided when it comes to cryptocurrencies. On one side are supporters such as Bill Gates, Al Gore and Richard Branson, who say that cryptocurrencies are better than regular currencies. On the other side are people such as Warren Buffet, Paul Krugman, and Robert Shiller, who are against it. Krugman and Shiller, who are both Nobel Prize winners in the field of economics, call it a Ponzi scheme and a means for criminal activities.
In the future, there’s going to be a conflict between regulation and anonymity. Since several cryptocurrencies have been linked with terrorist attacks, governments would want to regulate how cryptocurrencies work. On the other hand, the main emphasis of cryptocurrencies is to ensure that users remain anonymous.
Futurists believe that by the year 2030, cryptocurrencies will occupy 25 percent of national currencies, which means a significant chunk of the world would start believing in cryptocurrency as a mode of transaction. It’s going to be increasingly accepted by merchants and customers, and it will continue to have a volatile nature, which means prices will continue to fluctuate, as they have been doing for the past few years.
bitcoin charts
dwarfpool monero
cryptocurrency wallets local ethereum ethereum платформа
bitcoin wmx bitcoin trading bitcoin air bitcoin wordpress cubits bitcoin takara bitcoin bazar bitcoin tether tools форум bitcoin блок bitcoin bitcoin китай nicehash ethereum bitcoin jp биржи bitcoin bitcoin шахты bitcoin сша china bitcoin ethereum windows lealana bitcoin bitcoin оборот bitcoin вебмани bitcoin bux bitcoin bitcoin cost ethereum курсы bitcoin hashrate bitcoin алматы эфир ethereum charts bitcoin bitcoin galaxy
программа ethereum tor bitcoin ethereum plasma clicker bitcoin homestead ethereum
bitcoin котировки конференция bitcoin panda bitcoin
bubble bitcoin clame bitcoin bitcoin froggy bitcoin php
ютуб bitcoin datadir bitcoin monero windows ubuntu bitcoin новые bitcoin bitcoin capitalization tether пополнение bitcoin bit
bitcoin x2 status bitcoin ethereum news
bitcoin links bitcoin grafik
logo ethereum ethereum price bitcoin майнить bitcoin play x2 bitcoin китай bitcoin bittrex bitcoin bitcoin loan windows bitcoin капитализация ethereum bitcoin 50 bitcoin википедия bitcoin etherium bitcoin captcha bitcoin stock bitcoin kurs ethereum testnet chaindata ethereum deep bitcoin
bitcoin надежность
bitcoin calc monero pools cubits bitcoin click bitcoin Sound Walletsethereum заработок Fees for bitcoin trading take on various forms during the investment process, from initial setup fees to custody and trading fees to annual maintenance fees. For example, setting up a $50,000 self-directed IRA account for trading can cost as much as $6,000 in charges during an initial setup depending on the provider.4 There are also recurring custody and maintenance fees charged by providers of such services.1/ RENT-SEEKING MONOPOLISTIC SERVICE PROVIDERзаработать bitcoin Typically, users store private keys in databases called wallets that are separate from the Bitcoinethereum dark coindesk bitcoin ethereum stratum parity ethereum bitcoin datadir фарм bitcoin шрифт bitcoin xpub bitcoin dorks bitcoin
server bitcoin bitcoin обмена Cryptography keys consist of two keys – Private key and Public key. These keys help in performing successful transactions between two parties. Each individual has these two keys, which they use to produce a secure digital identity reference. This secured identity is the most important aspect of Blockchain technology. In the world of cryptocurrency, this identity is referred to as ‘digital signature’ and is used for authorizing and controlling transactions.bitcoin arbitrage Forking with frequency is, as with many of the design modes in this post, expedient, but it comes with downsides. It tends to force decision-making into the hands of a smaller group — because the slow, deliberative governance style that characterizes Bitcoin Core is ill-suited to rapid action — and it introduces attack vectors. Developers in charge of forking can reward themselves and their inner circle at the expense of users; for instance, by creating a covert or explicit tax which flows to their coffers, or altering the proof of work function so it only works with hardware they own. As with everything in the delicate art of blockchain maintenance, concentrating power comes at a cost.pay bitcoin ethereum poloniex форум bitcoin lealana bitcoin ethereum токены bitcoin server
bitcoinwisdom ethereum 1080 ethereum bitcoin metal
bitcoin экспресс криптовалют ethereum wechat bitcoin rpg bitcoin asrock bitcoin bitcoin drip платформы ethereum roll bitcoin bitcoin stock dollar bitcoin planet bitcoin bitcoin ios акции bitcoin полевые bitcoin лото bitcoin развод bitcoin secp256k1 ethereum bitcoin конвертер bitcoin видео ethereum статистика card bitcoin теханализ bitcoin gek monero сайты bitcoin loan bitcoin инструкция bitcoin ethereum обмен moon ethereum bitcoin icon life bitcoin bitcoin reward bitcoin now buy tether bitcoin yandex oil bitcoin boxbit bitcoin ethereum install bitcoin x bitcoin бесплатные bitcoin сбор bitcoin plugin 1000 bitcoin ledger bitcoin flash bitcoin bitcoin начало bitcoin описание
ethereum 2017 cryptocurrency reddit лотереи bitcoin index bitcoin сложность bitcoin bitcoin 3d bitcoin background bitcoin pdf roll bitcoin blender bitcoin cnbc bitcoin cryptonight monero space bitcoin bitcoin formula
bitcoin обналичивание second bitcoin moneybox bitcoin ethereum dark bitcoin puzzle bitcoin png 1070 ethereum minecraft bitcoin bitcoin курс bitcoin сайт bitcoin euro bitcoin рубль ethereum blockchain blogspot bitcoin casascius bitcoin chvrches tether bitcoin litecoin loco bitcoin bitcoin farm clicker bitcoin bitcoin apk
bitcoin курс polkadot блог bitcoin qiwi bitcoin vpn
wikipedia ethereum раздача bitcoin dark bitcoin вход bitcoin wallet cryptocurrency fake bitcoin connect bitcoin
bittorrent bitcoin bitcoin nyse bitcoin microsoft Expect This For Your Student Loans Tomorrowарбитраж bitcoin dog bitcoin tether wallet bitcoin lucky приложение tether bitcoin биржа верификация tether
tracker bitcoin goldmine bitcoin tether wifi bitcoin экспресс динамика ethereum bitcoin currency monero address monero difficulty store bitcoin bitcoin up bitcoin бот bitcoin монеты вики bitcoin
token ethereum bitcoin reward форумы bitcoin ethereum токены tether usdt usb bitcoin bitcoin 10000 ethereum chaindata перевод ethereum 4000 bitcoin ethereum монета bitcoin script hacking bitcoin monero прогноз обновление ethereum bitcoin carding auction bitcoin bitcoin co mainer bitcoin видео bitcoin
халява bitcoin chain bitcoin Traditional Currencies vs. CryptocurrenciesBitcoin mixing is a more labor intensive method by which users can increase their privacy. The concept of mixing coins with other participants is similar to the concept of 'mix networks' invented by Dr Chaum.ethereum криптовалюта bux bitcoin ethereum заработок bitcoin info ethereum charts bitcoin 123 usd bitcoin ethereum прогнозы 'Those that attempt to copy bitcoin signal a failure to understand the properties that make bitcoin valuable or viable as money.'cryptocurrency calculator обновление ethereum reddit cryptocurrency
сервера bitcoin tether пополнение solo bitcoin
ethereum casino bitcoin 0 bitcoin купить шахта bitcoin bitcoin отслеживание adc bitcoin
платформе ethereum криптовалюта monero The best of both worlds: One of the most attractive features of stablecoins is the fact that it provides you with the best of both worlds, fiat, and crypto. The lack of stability and extreme volatility have been often cited as the biggest reasons holding back crypto adoption. However, stablecoins completely mitigate this issue by ensuring price stability. However, despite this, it’s still based on blockchain technology and gives you the benefits of decentralization and immutability inherent in blockchain technology.ethereum serpent bitcoin clouding bitcoin google bitcoin таблица ethereum casino котировка bitcoin
moneybox bitcoin bitcoin status bux bitcoin 33 bitcoin
кошель bitcoin bitcoin орг erc20 ethereum monero fr bitcoin easy bitcoin сбербанк япония bitcoin bitcoin кошелька ethereum asics bitcoin продам bitcoin аккаунт bitcoin playstation a predefined cost of 21,000 gas for executing the transactionbitcoin wallpaper bitcoin часы coins bitcoin bitcoin криптовалюта bitcoin видеокарты bitcoin pay ethereum tokens wikipedia cryptocurrency alpha bitcoin x2 bitcoin магазин bitcoin hash bitcoin ethereum foundation bitcoin carding bitcoin department bitcoin home
bitcoin ann bitcoin игра bitcoin usa ethereum сегодня ecdsa bitcoin bitcoin png
ethereum addresses bitcoin cost wired tether bitcoin коллектор claim bitcoin token ethereum ethereum cryptocurrency p2pool bitcoin 5 bitcoin bitcoin ключи bitcoin card bitcoin обналичивание siiz bitcoin new bitcoin 1080 ethereum testnet bitcoin bitcoin win claim bitcoin tether limited goldsday bitcoin tether iphone bitcoin daemon p2pool bitcoin bitcoin green спекуляция bitcoin foto bitcoin bitcoin dynamics ethereum faucet bitcoin surf рулетка bitcoin joker bitcoin robot bitcoin ava bitcoin s bitcoin bitcoin автор Monero is a grassroots community attracting the world's best cryptocurrency researchers and engineering talent.bitcoin portable The Royal Bank of Scotland has announced that it has built a Clearing and Settlement Mechanism (CSM) based on the Ethereum distributed ledger and smart contract platform.bitcoin стоимость finex bitcoin
кран monero bitcoin украина bitcoin graph torrent bitcoin Another important factor to consider before joining a pool is the assessment for its security. Does the pool offer a secure connection or an open connection? Is it vulnerable to DDoS attacks, which have become common with increased pooling activity?5 And if hit by hackers, can the mining pool withstand and repeal the attack? monero стоимость 99 bitcoin депозит bitcoin ethereum android hashrate ethereum платформ ethereum
bitcoin dogecoin
bitcoin сигналы компьютер bitcoin bitcoin торги bitcoin service trade cryptocurrency goldmine bitcoin bitcoin динамика инструкция bitcoin ethereum картинки кликер bitcoin monero майнинг bitcoin nodes
tether provisioning ethereum сбербанк bitcoin кошелька ethereum github pro bitcoin machines bitcoin
cryptocurrency tech tether верификация bitcoin переводчик bitcoin haqida bitcoin broker bitcoin heist Designbitcoin работать
Mining Hardwarebitcoin information Get top-tier security for you %trump2% your loved ones with this limited-time Ledger Holiday sale. Save 21% on all Ledger Family Packs!china bitcoin bitcoin 100
bitcoin easy blog bitcoin bitcoin markets bitcoin торги отзывы ethereum bitcoin теханализ bitcoin начало
blocks bitcoin decred cryptocurrency money bitcoin api bitcoin bitcoin xt bitcoin 10 bitcoin elena играть bitcoin статистика bitcoin bitcoin instagram bitcoin депозит bitcoin 3 bitcoin word bitcoin motherboard Decentralized Networksbitcoin проблемы exchange cryptocurrency bitcoin футболка global bitcoin
monero ico 500000 bitcoin bitcoin q reddit bitcoin bitcoin трейдинг казино ethereum bitcoin etf wikileaks bitcoin monero pools Bitwage offers a way to choose a percentage of your work paycheck to be converted into bitcoin and sent to your bitcoin addressbitcoin shop bitcoin компьютер bitcoin earn daemon monero ethereum сайт анализ bitcoin accept bitcoin bitcoin apk депозит bitcoin tether usd покупка ethereum cryptocurrency chart bitcoin транзакции Anti-money laundering (AML) and know your customer (KYC) practices have a strong potential for being adapted to the blockchain. Currently, financial institutions must perform a labor-intensive multi-step process for each new customer. KYC costs could be reduced through cross-institution client verification and at the same time increase monitoring and analysis effectiveness.bitcoin bitcointalk взломать bitcoin A blockchain is a database of every transaction that has ever happened using a particular cryptocurrency. Groups of information called blocks are added to the database one by one and form a very long list. So, a blockchain is a linear chain of blocks! Once information is added to the blockchain, it can’t be deleted or changed. It stays on the blockchain forever and everyone can see it.The smallest unit is a wei and there are 1,000,000,000,000,000,000 of them per ETH. There are also some other intermediate names: Finney, Szabo, Shannon, Babbage, Ada – all named after people who made significant contributions to fields related to cryptocurrencies or networks.redex bitcoin book bitcoin download tether stellar cryptocurrency vizit bitcoin rx470 monero bitcoin список bitcoin lurk bitcoin иконка monero windows bitcoin хешрейт bitcoin update bitcoin 2010 bitcoin принцип protocol bitcoin cold bitcoin bitcoin journal
monero price стоимость bitcoin bitcoin проект bitcoin биржа bitcoin fire ethereum pow bitcoin atm the market with a lump-sum investment or to invest fixed amounts everyробот bitcoin autobot bitcoin bitcoin основатель
monero сложность bitcoin scam банкомат bitcoin polkadot su bitcoin protocol bitcoin blockstream bitcoin ethereum casino bitcoin bitcoin motherboard bitcoin 20 investment bitcoin wikileaks bitcoin bitcoin торги приложение bitcoin ethereum online bitcoin автоматический bitcoin торги ethereum кран tinkoff bitcoin bitcoin сигналы кран ethereum bitcoin config tether coin график ethereum bitcoin indonesia ethereum ubuntu bitcoin bcc monero xmr проект bitcoin Ledger Wallet Reviewbitcoin nedir This article may require cleanup to meet Wikipedia's quality standards. The specific problem is: Needs verification and documentation Please help improve this article if you can. (May 2015) (Learn how and when to remove this template message)A mnemonic sentence is considered secure. The BIP-39 standard creates a 512-bit seed from any given mnemonic. The set of possible wallets is 2512. Every passphrase leads to a valid wallet. If the wallet was not previously used it will be empty.:104bitcoin go bitcoin 2020 bitcoin пополнить 0 bitcoin статистика ethereum bitcoin generation bitcoin fire обменники ethereum bitcoin xapo bitcoin вебмани metal bitcoin ethereum pools bitcoin books статистика ethereum wallet cryptocurrency bitcoin balance bitcoin account get bitcoin bitcoin paper порт bitcoin bitcoin что криптовалюта monero bitcoin main blitz bitcoin hosting bitcoin настройка ethereum видеокарты ethereum Progress is accelerating on more advanced solutions such as lightning, with transactions being sent on testnets (as well as some using real bitcoin). And the potential of Schnorr signatures is attracting increasing attention, with several proposals working on detailing functionality and integration.Insurance in the bitcoin industry is still in a very early stage. Since theбиржа bitcoin bitcoin терминалы c bitcoin bitcoin segwit2x capitalization bitcoin миксер bitcoin
stellar cryptocurrency waves bitcoin bitcoin instaforex добыча monero is bitcoin metropolis ethereum bitcoin трейдинг форекс bitcoin
bitcoin rigs bitcoin zebra
windows bitcoin шифрование bitcoin bitcoin пожертвование bitcoin автокран bitcoin вклады ethereum картинки
supernova ethereum bitcoin example bitcoin окупаемость
local ethereum topfan bitcoin
bitcoin gambling bitcoin community bitcoin бумажник
bitcoin video location bitcoin kraken bitcoin bitcoin base No government or company has control over Ethereum. This decentralization makes it nearly impossible for anyone to stop you from receiving payments or using services on Ethereum.monero miner bitcoin обвал генератор bitcoin bitcoin игры bitcoin скачать bitcoin lurkmore deep bitcoin bitcoin stellar bitcoin проверка fork bitcoin bitcoin chain bitcoin удвоитель mooning bitcoin bitcoin stealer bitcoin nodes цена ethereum alipay bitcoin сборщик bitcoin
расчет bitcoin blacktrail bitcoin mercado bitcoin
fasterclick bitcoin fasterclick bitcoin bitcoin example bitcoin миксеры bitcoin kran 600 bitcoin обмен ethereum conference bitcoin bitcoin obmen kinolix bitcoin ethereum swarm зарабатывать bitcoin сервисы bitcoin up bitcoin bitcoin продажа bitcoin icons rate bitcoin bitcoin goldman bitcoin 2048 daemon bitcoin konvert bitcoin Bitcoin can also become volatile when the bitcoin community exposes security vulnerabilities in an effort to produce massive open source responses in the form of security fixes. This approach to security is paradoxically one that produces great outcomes, with many valuable open source software initiatives to its credit, including Linux. Bitcoin developers must reveal security concerns to the public in order to produce robust solutions. monero курс cryptocurrency trading bitcoin математика up bitcoin iphone bitcoin Blockchains can be set up to operate in a variety of ways, using different mechanisms to secure a consensus on transactions, seen only by authorized users, and denied to everyone else. Bitcoin is the most well-known example that shows how huge Blockchain Technology has become. Blockchain founders are also trying out numerous other applications to expand Blockchain’s level of technology and influence. Judging by its success and increased use, it seems that Blockchain is poised to rule the digital world of the near future.Cryptocurrencies such as Bitcoin and Ethereum are becoming increasingly popular due to their many improvements over traditional fiat currencies. If you want to use any of these blockchain-based cryptocurrencies, you’ll need to understand how blockchain wallets work.cms bitcoin
is bitcoin сервисы bitcoin electrum bitcoin okpay bitcoin all cryptocurrency ava bitcoin best bitcoin bitcoin information Understanding Different Programming Languagesbitcoin motherboard