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Cointelegraph has recently written about 'EOA' in relation with contracts and accounts.

As an EOA, the state simply stores the account's balance in ether and a sequence number is used to prevent transaction replay attacks. On the other hand, it stores the contract's code and its storage in a key-value database.

What is an 'EOA'?

16

This is an Externally Owned Account, so your normal Ethereum address, not a wallet contract.

In general, there are two types of accounts: externally owned accounts, controlled by private keys, and contract accounts, controlled by their contract code.

https://github.com/ethereum/wiki/wiki/White-Paper

5

It is an Externally Owned Account controlled by a public/private key pair. There are also contract addresses, which are controlled by the code written inside the contract.

1

Externally owned account (EOAs): an account controlled by a private key, and if you own the private key associated with the EOA you have the ability to send ether and messages from it. Contract: an account that has its own code, and is controlled by code.

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