Examples:Bitcoin, Ethereum.

Private Blockchain: Think of this as "Permissioned."It is a closed network. You need an invitation or specific access rights to join. It is usually controlled by a single organization to keep data confidential.

Examples: Hyperledger Fabric, Corda.

Public Blockchain is like the Internet:Anyone can visit a website (read) or publish their own blog (write). It belongs to everyone.

Private Blockchain is like a Company Intranet: Only employees with a password can log in. The company controls who sees the files and who can edit them.

Common Mistakes / Myths

Myth:"Private blockchains are not 'real' blockchains."

Truth:They are real blockchains, but they sacrifice decentralization for speed and privacy.

Myth: "Public blockchains are completely anonymous."

Truth They are *pseudonymous*. The ledger is public, so if someone links your identity to your wallet address, they can see everything you've done.

Myth: Private blockchains are always faster.

Truth:While generally faster due to fewer nodes, high-performance public chains (like Solana) are challenging this rule.