Which statement describes a primary characteristic of RAM?

Which statement describes a primary characteristic of RAM?

• A. It is volatile and loses data when power is removed
• B. It is non-volatile and retains data after power off
• C. It stores BIOS settings only
• D. It is used for permanent OS storage

Answer: (A)

RAM is volatile memory, meaning it holds data only while power is supplied. This makes it the system’s working memory, where the operating system, applications, and data being actively processed reside so the CPU can access them quickly. If power is lost, RAM’s contents vanish, which is why it’s not used for permanent storage. The idea that RAM is non-volatile and retains data after power-off describes memory like flash or a drive, not RAM. Saying RAM stores BIOS settings only refers to CMOS/firmware memory, which is separate from main system RAM. And calling RAM the place for permanent OS storage incorrectly assigns disk-like duties to RAM, since the OS is stored on non-volatile storage. In essence, the defining characteristic of RAM is its volatility and dependence on power to preserve data, making it ideal for temporary, fast-access memory during operation.

RAM is volatile memory, meaning it holds data only while power is supplied. This makes it the system’s working memory, where the operating system, applications, and data being actively processed reside so the CPU can access them quickly. If power is lost, RAM’s contents vanish, which is why it’s not used for permanent storage. The idea that RAM is non-volatile and retains data after power-off describes memory like flash or a drive, not RAM. Saying RAM stores BIOS settings only refers to CMOS/firmware memory, which is separate from main system RAM. And calling RAM the place for permanent OS storage incorrectly assigns disk-like duties to RAM, since the OS is stored on non-volatile storage. In essence, the defining characteristic of RAM is its volatility and dependence on power to preserve data, making it ideal for temporary, fast-access memory during operation.