What differentiates primary storage from secondary storage?

What differentiates primary storage from secondary storage?

• A. RAM is the main long-term storage device.
• B. Primary storage (RAM) is fast, volatile memory used by the CPU, while secondary storage (HDD/SSD) is non-volatile and used for long-term data storage.
• C. Secondary storage is faster than primary storage.
• D. RAM stores backups in cloud storage.

Answer: (B)

Primary storage vs secondary storage differ mainly in speed, volatility, and purpose. Primary storage (RAM) is the computer’s fast, working memory that the CPU uses to read and write data it’s actively processing. It’s volatile, so its contents disappear when power is lost, making it ideal for immediate tasks and calculations. Secondary storage (HDD or SSD) holds data long-term even without power; it’s non-volatile and much larger in capacity, used to store programs, files, and other data for long-term access, though it’s slower to read and write than RAM. That’s why the correct description is that primary storage is fast, volatile memory used by the CPU, while secondary storage is non-volatile and used for long-term data storage. The other statements mischaracterize RAM as long-term storage, claim secondary storage is faster than RAM, or suggest RAM stores backups in cloud storage, which isn’t how these memory types function.

Primary storage vs secondary storage differ mainly in speed, volatility, and purpose. Primary storage (RAM) is the computer’s fast, working memory that the CPU uses to read and write data it’s actively processing. It’s volatile, so its contents disappear when power is lost, making it ideal for immediate tasks and calculations. Secondary storage (HDD or SSD) holds data long-term even without power; it’s non-volatile and much larger in capacity, used to store programs, files, and other data for long-term access, though it’s slower to read and write than RAM.

That’s why the correct description is that primary storage is fast, volatile memory used by the CPU, while secondary storage is non-volatile and used for long-term data storage. The other statements mischaracterize RAM as long-term storage, claim secondary storage is faster than RAM, or suggest RAM stores backups in cloud storage, which isn’t how these memory types function.