The upper-level division is:
What are altcoins?
- Bitcoin is the first cryptocurrency, it's the oldest and most famous one.
- Altcoins are any cryptocurrency alternatives to Bitcoin.
There are more than 14,000 different altcoins.
The most famous alternative is Ethereum (ETH) or "Ether", the second most capitalized and most popular cryptocurrency after Bitcoin. Its goal is to fix all the disadvantages of Bitcoin and make transactions using ETH instant and with a low commission. The two founders are Vitalik Buterin and Joseph Lubin.
There are separate subspecies of altcoins: stablecoins. They attempt to peg their market value to external reference like the state currency's real exchange rate. Consequently, their exchange rate on the crypto exchange depends on the behavior of the state currency in real life.