Crypto & Blockchain Basics
Lesson 1 of 2 · 4 min
What is crypto?
Digital money that runs on shared networks instead of a single bank.
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Lesson
A cryptocurrency is a digital asset that lives on a network of computers instead of in one company's database. Bitcoin, Ether (on Ethereum) and SOL (on Solana) are well-known examples.
How is it different from regular money?
- No single company keeps the record. Thousands of computers keep matching copies.
- You can hold it yourself, without a bank, using a wallet app.
- Transfers can cross the world in minutes, any day of the week.
- Most transfers can't be reversed once confirmed.
Coins and tokens
A coin is usually the native currency of its own network (like ETH on Ethereum). A token is built on top of an existing network — for example, many stablecoins are tokens designed to track the US dollar.
A word on price
Crypto prices can rise and fall sharply. This course teaches how things work — it is not financial advice, and L2E never promises returns.
Key points
- Crypto is digital value recorded on a shared network.
- You can hold it yourself with a wallet.
- Transfers are fast but usually irreversible.
- Prices are volatile — learn first, never rush.
Quick quiz
Further reading
Official learning pages we used as sources. L2E is independent and not affiliated with these companies.