Select the statement that best describes volatile memory in computer systems.

Introduction / Context:
Volatility is a key classification for memory devices and determines whether data persists across power cycles. This question checks foundational knowledge that separates RAM from nonvolatile technologies such as ROM, Flash, and magnetic storage.

Given Data / Assumptions:

• Volatile memory requires continuous power to retain data.
• Typical volatile devices: DRAM, SRAM.
• Nonvolatile devices retain data without power.

Concept / Approach:
Volatile memory loses its contents when power is removed or drops below the retention threshold. This characteristic dictates system procedures for booting and state persistence, requiring that important data be saved to nonvolatile storage before shutdown.

Step-by-Step Solution:
Define volatile memory: data retention tied to power.Match this to the option that explicitly states loss of information without power.Reject options that confuse technology type with volatility.

Verification / Alternative check:
Everyday experience: PCs must reload the operating system into RAM at power-on. RAM contents vanish at power-off, confirming volatility.

Why Other Options Are Wrong:
Option A: Describes nonvolatile behavior.Options C and D: Magnetic or nonmagnetic says nothing about volatility.Option E: Some designs mitigate glitches but do not make volatile devices nonvolatile.

Common Pitfalls:
Assuming battery backup converts volatile memory into fundamentally nonvolatile memory. It only provides temporary retention while the battery lasts.

Final Answer:
Memory that loses stored information when electrical power is removed