Which type of memory is volatile, meaning its contents are lost when the power is turned off?

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When considering which memory type is volatile, we need to compare how each option behaves when power is removed.
Option a. RAM: This stands for Random Access Memory, which is volatile. Its contents are stored temporarily and are erased when the system loses power. This makes RAM suitable for currently running programs and active data, but not for long-term storage.
Option b. Hard Disk Drive: A traditional HDD is non-volatile storage. It retains data without power, using magnetic storage to preserve information between sessions. Therefore, it is not volatile.
Option c. SSD: A solid-state drive is also non-volatile storage. It uses flash memory to keep data without power, so it does not lose contents when the power is off. This differentiates it from RAM.
Option d. ROM: Read-Only Memory is non-volatile by design. It retains data even when power is off, typically containing firmware or boot instructions. Since it does not require power to maintain data, it is not volatile.
In summary, only RAM is volatile among these options because its data is temporary and disappears when power is removed, while HDDs, SSDs, and ROM preserve data without power.

System Software and Computing Concepts (032025-NHM)

Which type of memory is volatile, meaning its contents are lost when the power is turned off?

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