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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Arrange the following in increasing order of their per unit cost.
(A) DRAM
(B) Magnetic disk
(C) Optical disk
(D) SRAM
(E) Magnetic tape
Choose the correct answer from the options given below:
Solution
Per unit cost comparison (lowest → highest):
- (E) Magnetic tape → Cheapest (backup/archive storage)
- (B) Magnetic disk → Hard disk, inexpensive
- (C) Optical disk → CD/DVD/Blu-ray, costlier than HDD
- (A) DRAM → Main memory, more expensive
- (D) SRAM → Cache memory, fastest and most expensive
Final Order (increasing per unit cost):
E < B < C < A < D
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