What is what does default mean?

Default refers to a pre-existing or pre-established value, setting, or option that is automatically applied when no other alternative is specified or selected. In various contexts, default can refer to the failure to fulfill an obligation or pay a debt on time. In computer software and technology, the term describes a standard value, setting, or action that occurs unless another option is chosen or programmed. Defaults are often used to simplify tasks and minimize user errors, but they can also limit flexibility and customization.