Which component holds active data and programs while the computer is running?

Which component holds active data and programs while the computer is running?

• A. Storage
• B. Cache
• C. ROM
• D. RAM

Answer: (D)

Active data and programs during operation live in RAM, the computer’s main volatile memory. RAM is designed for fast read and write access, so the CPU can quickly fetch instructions and run data as needed while programs are executing. Because RAM is volatile, its contents are lost when power is off, which is why saving to storage is important. In contrast, cache memory is a tiny, even faster layer that stores a small subset of data the CPU is actively reusing to speed things up, but it doesn’t hold the whole set of active programs. ROM stores firmware and is non-volatile, not used for running current programs. Storage devices hold long-term data and programs but are much slower for immediate CPU access. So the component that holds active data and programs while the computer is running is RAM.

Active data and programs during operation live in RAM, the computer’s main volatile memory. RAM is designed for fast read and write access, so the CPU can quickly fetch instructions and run data as needed while programs are executing. Because RAM is volatile, its contents are lost when power is off, which is why saving to storage is important. In contrast, cache memory is a tiny, even faster layer that stores a small subset of data the CPU is actively reusing to speed things up, but it doesn’t hold the whole set of active programs. ROM stores firmware and is non-volatile, not used for running current programs. Storage devices hold long-term data and programs but are much slower for immediate CPU access. So the component that holds active data and programs while the computer is running is RAM.