Which type of secondary storage device requires a user to activate it?

Off-line secondary storage refers to any storage device that is not continuously connected to the computer system and requires a user action to access or activate it. Examples include USB drives, external hard drives, CDs, and DVDs. In this context, these devices must be physically connected to the computer or powered on by the user before the stored data can be accessed or utilized.

This differs from online secondary storage, which is continuously connected and accessible without further user interaction, and from cache memory, which is used for temporary high-speed access to data that the CPU needs. Peripheral devices also refer to externally connected hardware but do not specifically indicate user activation as a requirement for operation. Therefore, off-line secondary storage distinguished itself as the accurate choice since it necessitates that the user initiate access to the data.