What is Bitcoin?
Let's start with the basics – no technical jargon, just simple explanations.
🪙 Bitcoin in One Sentence
Bitcoin is digital money that you control yourself, without needing a bank or any middleman. It exists only on the internet and uses advanced mathematics to keep everything secure.
Unlike the dollars or euros in your bank account, no company or government controls Bitcoin. It's run by a global network of computers that anyone can join. Think of it as the internet's native currency – borderless, open to everyone, and always available.
The smallest unit of Bitcoin is called a "satoshi" (named after Bitcoin's creator). There are 100 million satoshis in one Bitcoin, so you don't need to buy a whole coin – you can own tiny fractions.
Comparison: Cash vs Bank vs Bitcoin
Click each option to learn how they differ:
Cash is physical money – you hold it in your hand and can give it directly to someone else. No bank needed.
- You control it – it's in your pocket
- Anonymous – no tracking
- Limited – can be lost, stolen, or destroyed
- Local only – hard to send far away
Your bank balance is just numbers in a database. The bank controls your money and decides if/when you can access it.
- Bank controls it – they can freeze your account
- Tracked – every transaction recorded
- Convenient – easy digital payments
- Limited hours – transfers can take days
Bitcoin combines the control of cash with the convenience of digital money. You hold the keys, no middleman needed.
- You control it – only you have the keys
- Transparent – all transactions public, but pseudonymous
- Global – send anywhere in minutes
- 24/7 – works every day, no holidays
- Limited supply – only 21 million will ever exist
From Traditional Money to Bitcoin
Bitcoin runs on thousands of computers worldwide – no single point of failure
Knowledge Check
Answer correctly to unlock the next level
1 Who controls a Bitcoin wallet?
You've mastered the basics of what Bitcoin is.