What do you mean by fixed cost?

Excuse me, could you please clarify what you mean by the term "fixed cost" in the context of finance and cryptocurrency? Are you referring to costs that remain constant regardless of the level of production or activity, such as rent, insurance, or salaries for permanent staff? Or is there a specific meaning related to the world of digital currencies and blockchain technology that I should be aware of? I'd appreciate it if you could elaborate on this concept and provide some examples to help me understand it better.