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Mining crypto currencies has two purposes: it simultaneaously validates every transaction done by anyone using the currency, and at the same time it produces new coins.
Anyone can do it by installing a software on their computer, but it requires a very powerful computer and will draw a lot of its computing power.
That's why people have regrouped into pools to combine their power and be a lot more efficient.
And then came dedicated miners, specially designed to mine cryptocurrencies. They're called ASIC miners for Bitcoin.
But even those are becoming obselete as the difficulty raises, and the power consumsion of the miners increases as well.
That's when Cloud mining was invented
To compare all of these solutions use Sha 256 cloud mining's services.
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