Ethereum is a P2P computation platform that allows programming on the blockchain using the Ethereum Virtual Machine. It was created in 2013 and now has over 25,000 nodes globally verifying the network, three times more than Bitcoin's 7,000 nodes. Ethereum represents its base unit of Ether as 10^18 wei and developers can build smart contracts that act like programs with public addresses, data, and methods that compile to EVM bytecode. Decentralized apps on Ethereum have a frontend in standard web languages and a blockchain backend using the Solidity programming language to deploy contracts to the EVM.

1. Ethereum

2. What is Ethereum?
● P2P protocol for computation platform
● Published by fellow Canadian Vitalik Buterin in 2013
● Created way to program on a Blockchain using EVM/JVM
Ethereum Now Has Three Times More Nodes Than Bitcoin. The ethereum network has nearly
25,000 reachable nodes, spread across the globe, less than two years after its launch, while
bitcoin currently has only around 7,000 nodes that verify the network.

3. Ethereum decimal places
• 1 ETH is represented by 10^18 of its natural unit ( 1 Ether =
1,000,000,000,000,000,000 wei ).

4. check how many nodes are live on the Ethereum
• https://ethernodes.org/network/1

5. Ethereum price in INR

6. Traditional vs. Smart Contracts

7. Smart Contracts – EVM Execution
● Has a public address
● Contract is like a class
● Contains data and methods
● Compiles down to EVM bytecode

8. EVM(Ethereum Virtual Machine) languages
High-level languages:

9. DAPP(Decentralized Application) Architecture
-Blockchain app architecture also has frontend and backend
-front end is also written in HTML/CSS/JS/JQuery
-backend is written in Solidity and deployed to Ethereum VM

10. Ethereum Wallet