---
# System prepended metadata

title: An Article about Externally owned Accounts (EOAs) and Contract Address (CAs) with reference from the Ethereum Book
tags: [Anuoluwapo AliWeekly, Blockfuselabs]

---

# An Article about Externally owned Accounts (EOAs) and Contract Address (CAs) with reference from the Ethereum Book
 During this study, I learnt that externally owned accounts are accounts with private keys. They can initiate transactions that are authenticated using digital signatures (passwords).
These EOAs are owned by individuals and controlled by a single entity. Only persons with the private keys or seed phrases can have access to these accounts, these accounts can send and receive tokens from various addresses and networks.
Also while studying Contract addresses I discovered that they are limited in functionality and can perform less activities compared to EOAs. Some of the discoveries I encountered was that contract address do not initiate transactions, they have no private keys,  it also has a smart contract which a simple EOA cannot hold and they are owned and controlled by a logic of a smart contract code.
I also checked for similarities between (EOAs) and (CAs):
And I found out both has addresses; (0xe53d) they can send and receive ether respectively.
Moving forward I studied how interacting with smart contract works, knowing that ETH contracts are programs that control money that runs in a virtual machine called Ethereum Virtual Machine (EVM).
I went ahead to discover how transactions are viewed on a contract address using a block explorer.
A block explorer is more like a website were an address can be scanned to take note of transactions performed on that address ,through this medium the  history about the address is generated . One of the block explorer website include: etherscan.io.
Lastly I was able to create a Meta-mask wallet adding it to my chrome extension .
