Which of the following statements correctly defines non-volatile memory?

The correct definition of non-volatile memory is that it retains data even when the computer is turned off. This characteristic distinguishes non-volatile memory from volatile memory, which loses its contents when power is removed. Common examples of non-volatile memory include hard drives, solid-state drives, and flash memory, all of which store data permanently until explicitly deleted by the user or overwritten.

By retaining information without the need for a continuous power supply, non-volatile memory plays a critical role in ensuring that important data, such as operating system files, application data, and personal documents, remain accessible across sessions and power cycles. This feature is essential for the practical functioning of data storage in computers and other electronic devices, allowing for both data persistence and stability.