Crypto

A cryptocurrency is like digital cash — you can send it directly to someone online without needing a bank or payment company in between.

It runs on a blockchain, which is a public record (ledger) of all transactions that everyone can see and verify.

Bitcoin (BTC): The first and most well-known cryptocurrency (created in 2009).

Ethereum (ETH): Adds smart contracts — code that runs automatically when conditions are met.

Others: Solana (SOL), Ripple (XRP), Dogecoin (DOGE), Cardano (ADA), etc.