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Which type of computer memory loses all of its stored data when the power is turned off?

  1. ARAM
  2. BHDD
  3. CSSD
  4. DROM
Show answer & explanation

Correct answer: A. RAM

RAM (Random Access Memory) is volatile memory, meaning it requires continuous power to retain data and loses its contents when power is removed. SSDs, HDDs, and ROM are non-volatile and retain data without power.

Why the other options are wrong

  • B. HDDs are non-volatile magnetic storage.
  • C. SSDs are non-volatile flash storage that retains data.
  • D. ROM is non-volatile and used to store firmware.

Volatile vs Non-Volatile Memory

Volatile memory (RAM) requires power to retain data; non-volatile memory (ROM, SSD, HDD) retains data without power.

  • RAM = temporary working memory
  • ROM = stores firmware/BIOS
  • SSD/HDD = permanent storage
  • Power loss clears RAM contents

Memory trick: RAM is like a whiteboard—erased when the lights go out.

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