Ethereum Guide ⛓️💰

1. What is Ethereum?

Ethereum is a decentralized blockchain platform that allows developers to build and run smart contracts and decentralized applications (DApps).

2. What is ETH?

ETH = Native cryptocurrency of Ethereum
Used for gas fees (transaction costs)

3. Smart Contracts

Self-executing code
Runs on blockchain
No middleman
Written in Solidity

4. How Ethereum Works

User → Smart Contract → Ethereum Network → Execution → Result

5. Key Components

EVM → Ethereum Virtual Machine
Nodes → Network participants
Gas → Transaction fee

6. Gas System

Gas = cost to run operations
More complex code = more gas

7. Use Cases

• DeFi (Decentralized Finance) 💰
• NFTs 🖼️
• DApps 🌐
• Smart contracts automation 🤖

8. Ethereum Ecosystem

Solidity → Smart contract language
MetaMask → Wallet
Remix IDE → Coding platform
Web3.js → JavaScript blockchain library