Which term best describes non-volatile storage devices designed for long-term data retention?

Which term best describes non-volatile storage devices designed for long-term data retention?

• A. Primary storage
• B. Secondary storage
• C. Cache memory
• D. Main memory

Answer: (B)

Non-volatile storage used for long-term data retention is secondary storage. Non-volatile means the data remains even when power is off, which is essential for keeping files, programs, and operating system data over time. Secondary storage devices like hard disks, solid-state drives, and optical discs are designed to store large amounts of data persistently, though they are typically slower to access than primary memory. In contrast, primary storage or main memory refers to RAM, which is volatile and loses its contents when power is removed, making it unsuitable for long-term storage. Cache memory is a small, very fast, but volatile layer used to speed up CPU data access, not for long-term storage. So the best term for non-volatile storage designed for long-term retention is secondary storage.

Non-volatile storage used for long-term data retention is secondary storage. Non-volatile means the data remains even when power is off, which is essential for keeping files, programs, and operating system data over time. Secondary storage devices like hard disks, solid-state drives, and optical discs are designed to store large amounts of data persistently, though they are typically slower to access than primary memory. In contrast, primary storage or main memory refers to RAM, which is volatile and loses its contents when power is removed, making it unsuitable for long-term storage. Cache memory is a small, very fast, but volatile layer used to speed up CPU data access, not for long-term storage. So the best term for non-volatile storage designed for long-term retention is secondary storage.