Bitcoin mining

Bitcoin is a form, of digital currency, created and held electronically, No one controls it. Bitcoins aren’t printed, like dollars or euros; they are produced by people, and increasingly businesses running computers all around the world, using software that solves mathematical problems. Bitcoin is the first example of a growing category of money known as cryptocurrency.
Bitcoin can be used to buy things electronically. In that sense, it’s like conventional dollars, euros, or yen which are also traded digitally.
CHARACTERISTICS OF BITCION

It’s Decentralized;
The Bitcoin network isn’t controlled by one central authority.
It’s easy to set up;
Conventional banks make you jump through hoops simply to open a bank account. However, you set up a bitcoin address in seconds, no question asked, and with no fees payable.
It’s anonymous.
Users can hold multiple bitcoin addresses, and they aren’t linked to names, addresses, or other personal identifying information.
It’s completely transparent
Bitcoin stores details of every single transaction that ever happened in the network in a huge version of a general ledger, called the BLOCKCHAIN.
It’s fast
You can send money anywhere and it will arrive minutes later, as soon as the bitcoin network processes the payment
BITCOIN MINING
Bitcoin mining is a peer-to-peer computer process used to secure and verify bitcoin transactions, payments from one user to another on a decentralized network. Mining involves adding transactions data to bitcoins global public ledger of past transactions.
Bitcoin mining is also the process by which transactions are verified and added to the public ledger, known as the BLOCKCHAIN, and also the means through which new bitcoins are released.
During mining, your bitcoin mining hardware runs a cryptographic hashing function (two round 0f SHA256) on what is called a block header. For each new has that is tried, the mining software will use a different number as the random element of the block header, this number is called the NONCE. Depending on the NONCE and what else in the block, the hashing function will yield a hash which looks something like this:
93ef358f66998c60802496863052290dyc6373367fe5bdaac821de96953a9a
You can look at this hash as a really long number (it’s a hexadecimal number, meaning the letters A-F are the digits 1-15).
To ensure that blocks are found roughly every ten minutes, there is what’s called a difficulty target, to create a valid block your miner has to find a hash that is below the difficulty target. So if for the difficulty target is;

10000000000000000000000000000000000000000000000000000000000000000000
Any number that starts with a zero would be below the target.
E.g;
0787a6fd6e0782f7f8058fbef45f5c17fe89086ade4e78a1526d0650acb4522f
If we lower the target to
0100000000000000000000000000000000000000000000000000000000000000000000000
We now need two zeros in the beginning to be under it;
00db27955557bd0ba0695af9e6c81226d74312a7028cf9a08fa125c49f151ae4979
Because the target is such an unwieldy number with tons of digits, people generally use a simpler number to express the current target.
HOW TO MINE BITCOINS
Purchase custom mining hardware;
Obtain a bitcoin wallet
Secure your wallet
Decide between joining pool or going alone
Download a mining program
Run your miner
Keep an eye on temperature
Check your profitability.