What is the difference between volatile memory and non-volatile memory?

What is the difference between volatile memory and non-volatile memory?

• A. Volatile memory loses data when power is off (e.g., RAM); non-volatile memory retains data without power (e.g., SSD, HDD, flash).
• B. Volatile memory retains data without power; non-volatile memory loses data when power is off.
• C. Both volatile and non-volatile memory always retain data.
• D. Volatile memory is used for long-term storage, non-volatile for active data.

Answer: (A)

Volatile memory is memory that loses its data when power is removed, while non-volatile memory keeps its data without power. This distinction drives how each type is used. Volatile memory, like RAM, is fast and is used as working memory for active tasks because the computer can read and write to it quickly. But if you turn off the power, whatever was stored there disappears. Non-volatile memory, such as SSDs, HDDs, flash memory, and ROM, retains data even when the device is powered off. It’s used for long-term storage so files and programs aren’t lost when you shut down. So, the idea being tested is that volatile memory loses data when power is off, while non-volatile memory preserves data without power. The other descriptions would mix up which type preserves data or when it’s used.

Volatile memory is memory that loses its data when power is removed, while non-volatile memory keeps its data without power. This distinction drives how each type is used.

Volatile memory, like RAM, is fast and is used as working memory for active tasks because the computer can read and write to it quickly. But if you turn off the power, whatever was stored there disappears.

Non-volatile memory, such as SSDs, HDDs, flash memory, and ROM, retains data even when the device is powered off. It’s used for long-term storage so files and programs aren’t lost when you shut down.

So, the idea being tested is that volatile memory loses data when power is off, while non-volatile memory preserves data without power. The other descriptions would mix up which type preserves data or when it’s used.