Question

Which of the following is a secondary memory device?

• A. Keyboard
• B. Disk
• C. ALU
• D. All of the above
• E. None of the above

Answer 1

Answer: (B)

Disk

Disk is a secondary memory device.

It cannot be processed directly by the CPU. It must first be copied into primary storage (also known as RAM). Secondary memory devices include magnetic disks like hard drives and floppy disks ; optical disks such as CDs and CDROMs ; and magnetic tapes, which were the first forms of secondary memory.

Because the RAM is connected directly to the CPU via the memory bus, the CPU can access data stored in RAM very quickly. ... While the computer's primary internal hard drive is the most common secondary storage device, other devices may be considered secondary storage devices as well.