Which is the secondary memory of the data processing system?
a.cpu
b.hard disk
c.floppy disk
d.alu
Answers
Answer:
ANSWER: floppy disk
explanation:
Floppy disk is a secondary memory device.
Secondary memory (or secondary storage) is the slowest and cheapest form of memory. 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.
A floppy disk is a type of disk storage composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure lined with fabric that removes dust particles. Floppy disks are read and written by a floppy disk drive (FDD).
Secondary storage is used to protect inactive data written from a primary storage array to a nonvolatile tier of disk, flash or tape. Secondary storage is synonymous with the terms secondary memory, auxiliary storage and external storage.