Crypto mining is the way toward refreshing the record of crypto transactions known as the blockchain. Mining is managed by running very efficient PCs (known as ASICs) that race against different excavators trying to figure out a particular number.
The crypto miner to figure out the number first will have the privilege of refreshing the record of exchanges and for the effort gets a reward of a fixed amount of freshly minted cryptocurrency.
Today, to make crypto mining worthwhile you need to invest vigorously in hardware and logistics. It’s unrealistic to mine productively with a home PC or GPU.