account- make transactions have eth balance: (types of accounts)EoA(has private keys linked to your address, cost less to own one e.g Metamask account, can only transfer ETH) & smart contract accounts(controlled by code, deploy code to generate address, expensive pay gas fees and deploy smart contract, has cost due to network storage(gas/deploy-minimize gas usage) e.g ENS account expensive to own one). They look similar but have differences.

transactions from EOA to smart contract account can trigger code

• creating smart contract you’ll need an EoA to make a transaction to smart contract address to trigger code.
• gas isn’t only tracked for the smart contract but also when you send transactions from one EoA to another.
• you can generate public addresses from private keys but not the other way around. Externally owned Accounts(EoA) are generated from a cryptographic hash.

Ethereum Accounts has 4 fields/categories

1. Nonce: an identifier that shows the amount of transaction i.e 30 transactions. Ensures that transactions are processed once and not multiple times
2. ETH Balance: ETH is measured in Gwei(smallest unit of eth). If you want to add ETH to your can add
3. contract code hash: Ethereum virtual machine(EVM) pass a hash of code through EVM (special instructions): immutable. Code hash (empty string for EoAs). It’s executed if EVM gets the
4. account’s storage route/storage hash: account addresses are stored in bytes like SHA256, Keccak256.

Externally Owned Accounts(EoA)

an account is made up of cryptographic keys: that help prove that the transaction was signed by the sender & prevent malicious activities. The private key is used to sign a transaction.

You never own cryptocurrency it's your account & private key. “with web3 keep private keys secure used custodian wallet else your money will disappear.”

To get better with Ethereum explore other resources then compare it with traditional to decentralized finance differences. Beginner/advanced content

Generating Account

• generating an account will create a random public key which is made up of 64 Hexa characters and can be encrypted with a password.
• the public key is generated from the private key using the elliptic curve digital signature algorithm.
• explanation about private vs public key

The account isn’t the same thing as a wallet. The wallet is the custodian of an account.

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