
What are bitcoin mining machines?
Could you elaborate on the concept of bitcoin mining machines? I'm curious to understand their role and function in the cryptocurrency ecosystem. Are they specialized computers that solve complex mathematical problems to validate transactions on the blockchain? How do they contribute to the security and stability of the Bitcoin network? Also, what kind of hardware specifications do these machines typically have? Is mining Bitcoin still profitable, considering the high competition and costs involved? I'd appreciate your insights on these aspects.
