Which type of memory stores data permanently, such as on hard disks, for long-term retention?

Which type of memory stores data permanently, such as on hard disks, for long-term retention?

• A. RAM
• B. Cache
• C. Secondary memory
• D. Registers

Answer: (C)

Storing data permanently for long-term retention involves non-volatile storage that remains available even when the computer is powered off. Secondary memory refers to these non-volatile storage devices, such as hard disks and SSDs, which keep programs, files, and data for the long haul. This contrasts with primary memory like RAM, which is volatile and loses its contents when power is removed; cache and registers are even smaller, ultra-fast storage areas near or inside the CPU, and they are also volatile. So, for lasting retention of data across sessions and power cycles, secondary memory is the appropriate category.

Storing data permanently for long-term retention involves non-volatile storage that remains available even when the computer is powered off. Secondary memory refers to these non-volatile storage devices, such as hard disks and SSDs, which keep programs, files, and data for the long haul. This contrasts with primary memory like RAM, which is volatile and loses its contents when power is removed; cache and registers are even smaller, ultra-fast storage areas near or inside the CPU, and they are also volatile. So, for lasting retention of data across sessions and power cycles, secondary memory is the appropriate category.