What is the Difference Between Ethereum and Bitcoin?

Bitcoin
The easiest way to define Bitcoin is to call it a “digital dollar.” That’s really all it is — minus all the formal regulations that come with a bank (which is what makes it such a disruptive concept). It’s not a technology. It’s not a company. It’s your money, held in a digital form.
Some people buy Bitcoin because they want to store their money somewhere other than a bank. Some buy Bitcoin as an investment, believing that its price a few months or years from now will be substantially higher than it is today. And some people purchase Bitcoin as a means of investing in companies that raise money through an ICO, since equity in those companies cannot be purchased with traditional currency. You can only purchase tokens with Bitcoin or Ether, which is Ethereum’s cryptocurrency.
Ethereum
Ethereum is another cryptocurrency, and one many people see as potentially overtaking Bitcoin as the dominant coin in the market.
What makes Ethereum different is its technology, not the fact that it’s yet another cryptocurrency. Ethereum’s coin value is referred to as “Ether,” and just like Bitcoin is bought and sold, and used by investors to buy into ICO opportunities.
The difference between Ethereum and Bitcoin is the fact that Bitcoin is nothing more than a currency, whereas Ethereum is a ledger technology that companies are using to build new programs. Both Bitcoin and Ethereum operate on what is called “blockchain” technology, however Ethereum’s is far more robust. If Bitcoin was version 1.0, Ethereum is 2.0, allowing for the building of decentralized applications to be built on top of it.
https://blockapps.net/blockchain-101-difference-ethereum-bitcoin/
