17. A storage device which is used to store data & information external to the main storage is known as A. Buffer B. Backing storage C. PROM D. Accumulator E. None of the above
The term backing storage refers to any non-volatile data storage that will retain a computer's data even after the computer is powered off. Common types of backing storage devices are hard drives, SSD, external hard disk drives, optical media such as CD or DVD, and flash media such as thumb drives and memory sticks.