By October 2009, the world’s first Bitcoin exchange was established. At the time, $1 was the equivalent of 1,309 Bitcoin. Considering how expensive Bitcoin is today, that was a real steal. Bitcoin traded at a fraction of a penny for quite some time. Things started changing in 2010; as the distribution of Bitcoin increased, the digital currency became inherently more valuable.

The good news: No advanced math or computation is involved. You may have heard that miners are solving difficult mathematical problems--that's not true at all. What they're actually doing is trying to be the first miner to come up with a 64-digit hexadecimal number (a "hash")  that is less than or equal to the target hash. It's basically guess work.
“The traditional way of sharing documents with collaboration is to send a Microsoft Word document to another recipient, and ask them to save the document, make revisions to it, and send it back. The problem with this scenario was that you needed to wait to receive a return copy before you could see or make changes to the document. You are locked out of editing it until the other person is done with it. That’s how banks work today—they maintain money balances and transfer money by briefly locking access to the account (or decreasing the balance) while they make the transfer, then they update the other side, then re-open access (or update the balance).
Like Bitcoin, Ethereum is a distributed public blockchain network. Although there are some significant technical differences between the two, the most important distinction to note is that Bitcoin and Ethereum differ substantially in purpose and capability. Bitcoin offers one particular application of blockchain technology, a peer to peer electronic cash system that enables online Bitcoin payments. While the Bitcoin blockchain is used to track ownership of digital currency (bitcoins), the Ethereum blockchain focuses on running the programming code of any decentralized application.
Ethereum was initially described in a white paper by Vitalik Buterin,[16] a programmer involved with Bitcoin Magazine, in late 2013 with a goal of building decentralized applications.[17][18] Buterin had argued that Bitcoin needed a scripting language for application development. Failing to gain agreement, he proposed development of a new platform with a more general scripting language.[19]:88 is a trading name of GAIN Capital UK Limited. GAIN Capital UK Ltd is a company incorporated in England and Wales with UK Companies House number 1761813 and with its registered office at 16 Finsbury Circus, London, EC2M 7EB. GAIN Capital UK Ltd is authorised and regulated by the Financial Conduct Authority in the UK, with FCA Register Number 113942.

CEX is one of those international bitcoin exchanges accepting euros, British pounds, US dollars, Russian Rubles, Ethereum, Zcash, and Dash. Needless to say, CEX is very popular within those currency regions. There is a no-nonsense landing page, giving you the option to buy or sell 100, 200, 500, or 1000 USD worth of Bitcoin. I like the transparency given to users about how much they will actually pay - even before they sign up. Good security practices, a modern and simple user interface, and both bank transfer & credit card purchases are available. CEX is indeed a good beginner-optimized alternative to Coinbase. Read the comprehensive Cex review for more details including fees, verification, & security.

Ethereum blockchain applications are usually referred to as DApps (decentralized application), since they are based on the decentralized Ethereum Virtual Machine, and its smart contracts.[5] Many uses have been proposed for Ethereum platform, including ones that are impossible or unfeasible.[78][79][49] Use case proposals have included finance, the internet-of-things, farm-to-table produce, electricity sourcing and pricing, and sports betting.[49][80] Ethereum is (as of 2017) the leading blockchain platform for initial coin offering projects, with over 50% market share.[81]
There are also purely technical elements to consider. For example, technological advancement in cryptocurrencies such as bitcoin result in high up-front costs to miners in the form of specialized hardware and software.[87] Cryptocurrency transactions are normally irreversible after a number of blocks confirm the transaction. Additionally, cryptocurrency private keys can be permanently lost from local storage due to malware, data loss or the destruction of the physical media. This prevents the cryptocurrency from being spent, resulting in its effective removal from the markets.[88]
Bitcoin is a peer-to-peer virtual currency. This means that in order for a transaction to occur, no middle men or central authority is needed. You can send any amount of bitcoins to anyone living anywhere in the world, completely eliminating the need for traditional third parties like banks or money transmitters. The cryptocurrency also allows the bypassing of capital and AML restrictions.
The Ethereum Platform rests on open-source software, and there is a risk that the Ethereum Stiftung or the Ethereum Team, or other third parties not directly affiliated with the Stiftung Ethereum, may introduce weaknesses or bugs into the core infrastructural elements of the Ethereum Platform causing the system to lose ETH stored in one or more User accounts or other accounts or lose sums of other valued tokens issued on the Ethereum Platform.