All bitcoin transactions will be recorded in the public ledger, and all transactions are required to be verified through hashing power before they are kept in the ledger.
The object that provides the casing power is called mining machine, and the owner of the machine is called miner.
Miners provide computing resources to ensure the operations of the bitcoin network. In exchange for the services, miners have a chance to be rewarded with bitcoin. Therefore, the process of earning bitcoin by providing the hashing power is called "Mining".