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

Question

BlackTom AI · Accepted Answer

The question asks which memory type is volatile and loses its contents when power is removed.
Option a: ROM. ROM is non-volatile and retains data without power; it typically stores firmware or system-level instructions, so this does not match the volatile requirement.
Option b: SSD. Solid-state drives are non-volatile storage used for long-term data retention, not temporary working memory; thus they do not fit the description of volatile memory.
Option c: RAM. Random Access Memory is volatile memory; it stores data and instructions that the CPU uses actively, but its contents disappear when power is turned off, which exactly matches the definition in the question.
Option d: Hard Disk Drive. HDDs are non-volatile storage devices used for persistent data storage, not volatile memory, so they also fail to meet the stated criterion.

System Software and Computing Concepts (032025-NYY) Tutorial 4: Computer Hardware and Subsystems

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

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