Blockchain Tutorial: From Basics to Becoming a Blockchain Developer

Learn all about blockchain technology, cryptocurrencies, Ethereum, and becoming a blockchain developer in this comprehensive tutorial.

00:00:05 This video provides a complete tutorial on blockchain, covering topics such as how blockchain works, cryptocurrencies, Ethereum, bitcoin mining, industries disrupted by blockchain, popular blockchain applications, and becoming a blockchain developer.

💡 Blockchain is a decentralized technology that securely records and stores data in a chronological order using cryptography.

💰 Blockchain eliminates the need for intermediaries like banks, reduces transaction costs, and provides secure and transparent transactions.

🔒 The key features of blockchain include a public distributed ledger, hashing encryption, proof of work consensus algorithm, and mining.

00:34:49 This video explains the basics of blockchain technology, how it is used in Bitcoin, and its features such as public distributed ledger and hashing encryption. It also discusses the implementation of blockchain in a banking system and demonstrates how to create a KYC blockchain application.

🔑 Blockchain is a public distributed ledger that ensures data remains untempered and is accessible to everyone in the network.

💡 Bitcoin adopted blockchain technology to solve problems faced by fiat currencies, leading to the development of over 1600 cryptocurrencies.

📚 A bitcoin transaction involves the sender transmitting transaction details, which are verified by miners and added to the blockchain.

01:09:32 This video provides an explanation of blockchain technology, including topics such as block size, hard forks, and uses in preventing voter fraud and quality assurance. It also discusses job opportunities in blockchain development.

🔑 Blockchain technology allows for the creation of new versions of a blockchain with different rules and functions.

🔄 A hard fork in blockchain involves creating a new blockchain with updated software protocols, while the old blockchain continues to exist.

💼 Blockchain has applications in preventing voter fraud, quality assurance, and is expected to see increased adoption in various industries.

💱 Cryptocurrencies like Bitcoin and Ethereum are decentralized digital currencies that use blockchain technology for secure transactions.

⛓️ Ethereum Virtual Machine (EVM) is the runtime environment for executing smart contracts on the Ethereum network.

💰 Gas is the unit used in Ethereum to measure computational power required for transactions, and it is paid for using Ether.

⛏️ Mining in Ethereum involves validating transactions, adding them to the blockchain, and earning rewards in the form of Ether.

01:41:17 This video explains decentralized applications and their differences from traditional applications, as well as the role of smart contracts in blockchain networks. It also explores the applications of Ethereum in real-world scenarios and provides a step-by-step guide to deploying a smart contract using Solidity.

🔑 Decentralized applications (dApps) replace centralized web applications by fetching data from a decentralized blockchain network.

💡 dApps are open source, use a public blockchain token, and allow for direct interaction between end users and providers.

🔒 Decentralized autonomous organizations (DAOs) operate in a decentralized and democratized manner, making decisions using smart contracts and voting systems.

💰 Ethereum is widely used for building smart contracts, enabling applications like voting systems, banking, and supply chain tracking.

🔐 Smart contracts eliminate the need for intermediaries, automate contract execution, and provide transparency, security, and cost savings.

💻 Solidity is a high-level programming language used for implementing smart contracts on Ethereum.

🗳️ Blockchain-based voting systems eliminate voting malpractices and provide transparency, traceability, and fairness.

💸 Smart contracts can be used to issue digital tokens, create a tradable currency or asset, and enable crowdfunding with predefined conditions.

02:16:00 Learn about the basics of Bitcoin, including how transactions are verified through mining and the advantages of using blockchain technology. Explore different types of wallets for storing cryptocurrencies.

🔑 Blockchain allows for efficient tracking of transactions through smart contracts.

⛏️ Bitcoin mining is the process of verifying transactions and adding them to the blockchain.

💼 Blockchain wallets provide secure and decentralized management of cryptocurrencies.

02:50:10 This video provides an overview of blockchain technology, including its use in supply chain management, cybersecurity, voting, insurance, and real estate. It also compares Bitcoin and Ethereum and discusses 10 interesting facts about Bitcoin.

💡 Blockchain is a decentralized system that uses cryptography to secure transactions and records them in a public ledger called a blockchain.

🔒 Blockchain technology has applications in supply chain management, cyber security, voting, insurance, real estate, and more.

💰 Bitcoin is a decentralized cryptocurrency that works using encryption techniques and allows for peer-to-peer transactions.

03:20:34 Learn how to become a blockchain developer. Discover the types of blockchain developers, the required skills, salaries, and how companies use blockchain technology. Get certified with Simplilearn.

📚 Blockchain is a fast-growing skill and has worldwide acclaim, creating job opportunities.

👩‍💻 A blockchain developer sets up and supports a blockchain network and develops applications and smart contracts.

🔨 To become a blockchain developer, you need to learn programming languages, object-oriented programming, databases, data structures, and web application development.

💰 Blockchain developers are in high demand and can earn salaries up to $150,000 per annum.

🏢 Companies like Walmart and JPMorgan are using blockchain for supply chain management and private transactions.

🌐 Simply Learn offers certification courses to learn blockchain basics and advanced concepts.

03:51:49 Learn about blockchain, including the difference between Bitcoin and Ethereum, the use of nonces in mining, steps in a blockchain project implementation, real-life use cases, parts of EVM memory, gas usage in transactions, types of forking, proof of work vs proof of stake, 51% attack, function modifiers in solidity, and writing a crowdsale smart contract.

💡 Blockchain uses different transaction fees and nonce for mining, with bitcoin using transaction fees and ethereum using gas and nonce.

📊 The steps involved in a blockchain project implementation include requirement identification, consensus mechanism selection, platform choice, and development and implementation.

🔗 Blockchain is widely used in supply chain management to provide transparency and traceability of transactions.

Summary of a video "Blockchain Full Course - 4 Hours | Blockchain Tutorial |Blockchain Technology Explained |Simplilearn" by Simplilearn on YouTube.

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