Which of the following is used as a primary storage device?
A. Magnetic drum
B. PROM
C. Floppy disk
D. All of the above
E. None of the above
Answer: Option B
Solution (By Examveda Team)
PROM is a sophisticated version of ROM that can be programmed once after it has been created; and Cache memory which is also a common example of primary storage that is directly integrated with the CPU chip to provide high-speed data access for future requests.This Question Belongs to Computer Fundamentals >> Computer Fundamental Miscellaneous
Magnetic drums were once used as a primary storage device but have since been implemented as auxiliary storage devices.
write ans is A.