Bitcoins can be mined and even made with money, but it will not always be profitable. The mining process is called mining. Thanks to it, there are transactions on the network, and thanks to the huge capacity it is impossible to crack. Doing alone mining is a senseless undertaking, since only one computer receives rewards. And since the competition is extremely high, the chances that it will be your PC are very low. It's like a chance to win the lottery.