이더리움 가상 머신과 스마트 컨트랙트 이해하기

### 이더리움 가상 머신(EVM)과 그 기능에 대한 이해
* 💻 30명으로 구성된 소규모 그룹은 포트폴리오를 구축하고 고임금 솔리디티 일자리를 확보하는 데 유용한 **탈중앙화 애플리케이션(dApp)을 만드는 데 초점**을 맞춘 프로그램을 테스트했습니다.
* 🔗 이더리움 가상 머신(EVM)은 개발자가 코드의 동작을 예측할 수 있는 프로그래밍 언어인 **솔리디티로 주로 작성된 스마트 콘트랙트 코드**를 처리합니다.
* 💾 개발자가 스마트 컨트랙트를 작성할 때는 사람이 읽을 수 있는 솔리디티 코드를 바이너리 데이터에서 작동하므로 **EVM이 이해할 수 있는 바이트코드로 컴파일**해야 합니다.
* 💰 스마트 컨트랙트의 복잡성은 비용에 직접적인 영향을 미치는데, 이는 **EVM의 워크로드가 더 복잡한 작업**으로 인해 증가하며, 각 작업은 다양한 비용을 가진 특정 옵코드로 식별되기 때문입니다.
* 🌐 EVM의 장점 중 하나는 **폴리곤에서 이더리움으로 이동하는 등 여러 체인에서 애플리케이션을 쉽게 마이그레이션**할 수 있어 개발자들이 솔리디티를 사용하기에 매력적이라는 점입니다.
* 📊 EVM은 **토큰 잔액이나 대출 금액과 같은 데이터의 변경**을 포함할 수 있는 각 처리된 트랜잭션에 대해 상태를 업데이트하여 트랜잭션의 전체 기록을 유지합니다.
* 🖥 궁극적으로 EVM은 수많은 개별 컴퓨터의 성능을 결합하여 **탈중앙화된 금융 거래와 스마트 컨트랙트를 효율적으로 처리**하는 정교한 클라우드 컴퓨터 역할을 합니다.
* 🚀 웹 3.0 개발자가 되는 방법에 대해 더 자세히 알고 싶다면 **곧 부트캠프가 시작될 예정**이며, 디앱을 개발하고자 하는 분이라면 **대기자 명단에 참여**해 보시기 바랍니다.

EVM은 스마트 컨트랙트 트랜잭션을 효율적으로 처리하여 개발자가 다양한 블록체인에서 애플리케이션을 쉽게 마이그레이션할 수 있도록 지원합니다.

you've probably heard the term EVM everywhere now. In fact, way more projects use it other than just Ethereum. Even though it was built for Ethereum, Avalanche, Polygon, Binance Smart Chain, Phantom, and tons of other chains use this highly specialized blockchain technology. So, what does it mean? What does it do? And how does it work? Welcome to Whiteboard Crypto, the number one YouTube channel for crypto education. Here, we explain topics of the cryptocurrency world using analogies, stories, and examples so that anyone can easily understand them. In this video, we're going to be explaining what the EVM is, how it works, and why so many blockchains are utilizing it. Before we get too far into what an EVM is, if you're interested in learning how to be a Web 3 developer by going through my very own boot camp that'll teach you how to build any DApp imaginable, you should go ahead and click the link in the description to join the waitlist and get notified when it launches really soon. Moving forward, what is the EVM? Well,

I'm just going to jump right into it and say the EVM is an acronym for the Ethereum Virtual Machine. To completely understand this, we have to understand what a virtual machine is. Technically, the EVM is a cloud computer that is operated by all the nodes that contribute to it. This means that it's not a single computer somewhere; it's the accumulation of thousands of computers around the world. In reality, these computers are made up and operated by people like you and me. Each computer on the Ethereum network runs a piece of software that is basically just computing the output of smart contract transactions. Now, this theoretical cloud computer EVM has many similar parts to a real computer, such as memory, storage, and a part specialized for computing numbers. It is different, though, from a real computer because it doesn't need a monitor or a keyboard or a mouse, but it does need a few unique pieces, like a part to be able to understand and read smart contract code. The EVM, though, is basically just a computer specialized at processing smart contract

transactions now moving forward. Smart contract code written by developers is what the EVM processes truthfully. There are a few different EVM languages that developers write in; however, the most common one is Solidity. Solidity is a programming language that allows developers to write code that they can understand and make predictions on how the code will work in reality. Code can work in ways that we don't expect it to. Solidity is not the code that the EVM reads and processes, though. The EVM reads something called bytecode, which is basically just a bunch of ones and zeros. You probably already knew that computers do math in binary or ones and zeros. When a developer writes a smart contract, they must compile it. This is a term meaning they turn the Solidity language code, which is human-readable and understandable, into bytecode so that the EVM can understand it and read it. This is mostly because humans aren't really good at reading a bunch of ones and zeros, so we came up with Solidity for us to be able to read and

write code much more effectively. Essentially, this compiling process is just a way to translate human code to machine code. As I mentioned earlier, this translation process does leave us open to vulnerabilities, but that's for another video. Now, hypothetically, in between Solidity and bytecode, there's a middle theoretical language called op code. Op code is quite literally a language that shows operational code, or rather instructions—the instructions that the EVM must take to perform a smart contract transaction. You might recognize or be able to predict what some of these op codes do. For example, push, M store is zero, and call. But you should know that there's over a hundred different op codes. I called this a theoretical middle language because most people don't write op code, and the EVM doesn't read op codes. Each of these codes, though, does cost a certain amount of money to be run on the EVM. And if you add up all the op codes in a single smart contract and multiply each op code by the cost of each op code, you get the total amount of gas or money that it

takes to deploy or use a Smart contract. The more complex that a smart contract is, the more it costs to use it. And this is because you're making the EVM do more work. So, each smart contract can be broken down into a list of operations, which can be named by their opcode names. Also, some opcodes are more expensive than others, and some opcodes are more common than others. One really interesting thing about blockchains that use the EVM is that it's really easy to move your projects and applications from one chain to another if they both use the EVM. This means if you have an application on Polygon, it's very easy to move it over to Phantom or Avalanche or Ethereum. You can move your project around where your customers are most likely to be. Now, this is unlike Cardano or Solana, which use Rust. Developers are highly incentivized to program things using Solidity due to the massive market that they could reach just by migrating their app from one chain to another. The next thing I want to talk about is how

the evm processes transactions. The evm processes transactions sequentially, one by one. This means it doesn't do a whole bunch of things all at once. And if a process doesn't work for whatever reason, maybe for example, say you're trying to send someone one eth, but you actually only have 3/4 of an eth in your account, then the transaction is skipped. Each time the evm runs a transaction, we say that the state of the evm is updated. Since the evm is really just a collection of data, of information, each transaction that the evm processes simply changes that data that is on the evm. We call this collection of data a state. If one thing changes in the evm, if just one number changes, then we say that the state of the evm has changed. Each transaction changes the state of the blockchain, and if you wanted, you can make a copy of the blockchain and roll it back to any state in the past that you wanted to. In short, what this means is that each time the evm changes or

processes a transaction. There's always a complete record of what the EVM consisted of before the transaction and after the transaction, and this list of transactions is what we call the blockchain. So, as a review, the EVM is a virtual computer that's a collection of thousands of individual computers all out there running the same smart contract transaction action. This virtual computer has rules and can only understand binary code, which consists of ones and zeros. To be able to add transactions to the EVM, developers create secondary languages such as Solidity, which allows humans to write code in the English language so that they can have the EVM perform what they want it to do without needing to understand the binary code. The cost of a smart contract is simply determined by what work the EVM performs, whether it's reading data, writing data, or both, and also how much data it reads or writes. We can actually know specifically how much a smart contract will cost to run by looking into the op code of a transaction, which is literally the operational code or the instructions of

a transaction where each operation costs a certain amount of money to perform. For instance, adding two numbers might be one 1,000 of a dollar. Add up all of these op codes and their costs, and you get the total cost to perform a smart contract transaction. Also, when transactions are submitted to be processed by the EVM, they are ran sequentially, one by one, and each transaction changes the state or the collection of data that the EVM holds. This data could be token balances, or maybe the amount of a loan to repay, or even a simple chat message. Overall, the EVM is made out to be a really sophisticated idea, but essentially, it's just a specialized computer that's designed to process DeFi transactions. Finally, as we end this video, if you actually learned something about the EVM in this video, or maybe how it worked, and you found it interesting, you would be a great candidate for my upcoming Web 3 boot camp. I'm only opening the doors for a week next week, and if you want in, you'll have to join the waitlist below.

technically, I've had a very small group of 30 people go through it already, and they loved it. We created tons of different daps with the goal of being able to create any dap idea that you can think of or score a high-paying solidity job by using these daps as your portfolio. If you're interested in web 3 at all and want to build something for the next Bull Run, I highly recommend joining the waitlist below. Thanks for watching. I hope you enjoyed this video. I really hope you learned something, and most of all, I hope to see you in our next video.

What is the EVM? Ethereum Virtual Machine - Explained with Animations

Welcome to whiteboard crypto, the #1 YouTube channel for crypto education and here we explain topics of the cryptocurrency world using analogies, stories, and examples so you can easily understand them.

Whiteboard Crypto

스마트 컨트랙트에서 운영 코드의 역할 이해하기

연산 코드는 솔리디티와 바이트코드 사이의 이론적 중간 언어로, EVM이 스마트 콘트랙트 트랜잭션을 수행하기 위한 지침을 제공합니다.

수백 가지가 넘는 연산 코드가 있으며, 각 연산 코드는 EVM에서 실행하기 위한 특정 비용이 있습니다.

스마트 콘트랙트 실행의 총 비용은 사용된 모든 연산 코드의 비용을 합산하여 계산됩니다.

스마트 컨트랙트의 비용과 기능

스마트 콘트랙트 사용 비용은 복잡해질수록 증가하는데, 이는 EVM이 더 많은 작업을 수행해야 하기 때문입니다.

EVM 기반 블록체인은 체인 간에 프로젝트를 쉽게 마이그레이션할 수 있어 개발자가 솔리디티를 사용하도록 장려합니다.

EVM은 완전한 기록을 유지하여 트랜잭션을 처리하며, 규칙은 바이너리 코드로 정의되는 반면 솔리디티와 같은 보조 언어는 사람이 읽을 수 있는 코딩을 가능하게 합니다.

이더리움 가상 머신(EVM) 이해하기

EVM은 트랜잭션을 순차적으로 처리하여 각 트랜잭션마다 상태를 업데이트하고 블록체인의 데이터를 변경합니다.

트랜잭션이 실패하면 건너뛰고 EVM의 상태를 이전 시점으로 롤백할 수 있습니다.

원래 이더리움용으로 구축된 EVM은 현재 아발란체, 폴리곤, 바이낸스 스마트 체인 등 다양한 블록체인에서 사용됩니다.

EVM은 스마트 콘트랙트 트랜잭션을 순차적으로 처리하며, 각 작업에는 일정 금액의 비용이 듭니다.

전 세계 수천 개의 노드에서 운영되는 클라우드 컴퓨터로, 스마트 콘트랙트 트랜잭션의 출력을 계산하는 소프트웨어를 실행합니다.

EVM은 실제 컴퓨터와 유사한 구성 요소를 가지고 있지만, 스마트 콘트랙트 코드 처리에 특화되어 있으며 기존 입력 장치가 필요하지 않습니다.

이미 30명으로 구성된 소규모 그룹이 디앱 제작 프로그램을 거쳤으며, 참가자들은 높은 만족도를 표명하고 있습니다.

목표는 다양한 디앱 포트폴리오를 만들어 고임금 솔리디티 일자리를 확보하고 다음 불런에 대비하는 것입니다.

이 프로그램은 스마트 컨트랙트 코드를 작성하고, 이를 바이트코드로 컴파일하여 EVM이 처리할 수 있도록 하는 솔리디티의 중요성을 강조합니다.